Category: Class 5

Tamilnadu State Board New Syllabus Samacheer Kalvi 5th English Guide Pdf Term 1 Prose Chapter 3 The Guardians of the Nation Text Book Back Questions and Answers, Summary, Notes.

Tamilnadu Samacheer Kalvi 5th English Solutions Term 1 Prose Chapter 3 The Guardians of the Nation

5th English Guide The Guardians of the Nation Text Book Back Questions and Answers

In-Text Question (Think):

Question 1.

Why do the soldiers (people) die? When will it be stopped?
Answer:
Soldiers are the persons who vigorously support their countries and are prepared to defend it against enemies or detractors. They have true patriotism. So, when a war breaks out, due to conflicts between two countries on the border issue, soldiers fight for their respective countries. Ultimately a quite number of soldiers die.

It will be stopped only when peace prevails in all the countries in the world.

Let us understand:

A. Choose the best answer:

Question 1.
Karmugilan went to ______ for higher studies.
(a) London
(b) Australia
(c) USA
(d) New Zealand
Answer:
(c) USA

Question 2.
______ broke out in the near by villages.
(a) malaria
(b) cholera
(c) dengue
(d) flu
Answer:
(c) Dengue

Question 3.
He got _______ the disease.
(a) infected by
(b) cured off
(c) upset
(d) remedy for
Answer:
(a) Infected by

Question 4.
The villagers, built a ______ on his memory.
(a) statue
(b) memorial
(c) library
(d) hospital
Answer:
(d) Hospital

B. Fill in the blanks:

Question 1.
They ate a bowl of ______.
Answer:
chickpea sundal

Question 2.
______ is the memorial for the soldiers.
Answer:
Amar Jawan Jyoti

Question 3.
Flag day is observed on the ______.
Answer:
7th December

Question 4.
A ______ dies for the nation.
Answer:
Soldier

Question 5.
______ was a young talented doctor.
Answer:
Karmugilan

Answer the following questions:

Question 1.
What were Anandhan and Yazhini watching in the television?
Answer:
Anandhan and Yazhini were watching a ceremony at Amar Jawan Jyoti, where people were paying respect to a helmet on top of a gun.

Question 2.
What is Amar Jawan Jyoti?
Answer:
Amar Jawan Jyoti is a memorial for the soldiers who died for our country.

Question 3.
What did Anandhan want to become?
Answer:
Anandhan wanted to become a doctor.

Question 4.
Why did Yazhini want to join the military?
Answer:
Yazhini wanted to serve the nation. So she wanted to join the military

Question 5.
What happened to Dr. Karmugilan in the story?
Answer:
Dr. Karumugilan served the people who were infected with dengue. Finally he was also affected by the disease and died.

Question 6.
What was the epidemic that broke out in the story?
Answer:
Dengue was the epidemic that broke out in the story.

Let us Build:

We divide the words to pronounce them easier. Here are some tips to divide.
உச்சரிப்பதற்கு வசதியாக நாம் வார்த்தைகளைப்பிரிக்கிறோம். எவ்வாறுவார்த்தைளைப் பிரிப்பது என்பதற்கான குறிப்புகளை இங்கு காண்போம்.

A. Circle and divide the bulldog pattern words:

Question 1.

Answer:
Out of six given words, the bulldog pattern words are – Sunset, Skyblue, Goldfish

• sun/set
• sky/blue
• gold/fish.

B. Divide and list out the word under each pattern:

Answer:

C. Write some pattern words and divide them:
Answer:

• airport – air/port
• headlight – head/light
• breakfast – break/fast
• landmark – land/mark
• moonlight – moon/light
• wheelchair – wheel/chair

5th English Guide The Guardians of the Nation Additional Questions and Answers

Question 1.
Write some pattern words and divide them.
Answer:

• reach – rea/ch
• board – boa/rd
• deal – dea/l
• oap – soa/p
• ecise – plea/se
• roast – roa/st

Question 2.
Write some pattern words and divide them.
Answer:

• march – mar/ch
• nurse – nur/se
• target – tar/get
• purse – pur/se
• interest inter/est
• church – chur/ch

Answer the following Questions:

Question 1.
What was Anand’s father doing when Anand came from school?
Answer:
Anand’s father was watching the news on the television.

Question 2.
What is the importance of 7th December?
Answer:
Armed Forces Flag Day is observed on 7th December every year.

Question 3.
Why did Karmugilan go to the USA?
Answer:
Karmugilan went to the USA for studying.

Question 4.
What did Karmugilan’s parents think of him?
Answer:
Karmugilan’s parents thought that he would live in the USA and continue his practice.

Question 5.
Why did Karmugilan come back to India?
Answer:
Karmugilan came back to India to treat the poor people at free of cost.

Question 6.
What is the real service to the nation?
Answer:
We should treat everyone around us with love and respect. That is the real service to the nation.

The Guardians of the Nation Summary in English and Tamil

Anand and Yazhini came home from school. After washing their face, hands, and legs, they sat down next to their Father Their Father was watching the news on the television. There were two bowls of chickpea sundal. They ate and watched a ceremony where people were paying respect to a helmet on top of a gun. “Dad, what is this place? What are they doing?” asked Anandhan. Dad replied, “This is Amar Jawan Jyoti, a memorial for the soldiers who died for our country.

ஆனந்தும், யாழினியும் பள்ளியிலிருந்து வீட்டிற்கு வந்தார்கள். முகம், கை, கால்களைக் கழுவிய பிறகு, அவர்களது தந்தைக்கு அருகே வந்து அமர்ந்த னர். அவர்களது தந்தை தொலைகாட்சியில் செய்திகளை பார்த்துக் கொண்டிருந்தார். அங்கு இரு கிண்ணங்களில் சுண்டல் இருந்தது. அவர்கள் சாப்பிட்டுக் கொண்டே தொலைகாட்சியில் ஒரு நிகழ்ச்சியைப் பார்த்தார்கள். ஒரு துப்பாக்கியின் மீது வைக்கப்பட் வைக்கப்பட்டிருந்த ஒரு தலைக்கவசத்திற்கு மக்கள் மரியாதை செய்து கொண்டிருந்த காட்சி அது. “அப்பா, இது என்ன இடம்? அவர்கள் என்ன செய்கிறார்கள்?”, என்று ஆனந்தன் கேட்டான். “இதுதான் அமர் ஜவான் ஜோதி. நமது நாட்டிற்காக உயிரிழந்த படைவீரர்களின் நினைவுச்சின்னம்.

Every year, 7th December is observed as Armed Forces Flag Day. On that day, we remember the sacrifices of our soldiers for guarding our nation. It is a great honour to serve the nation by joining the army.”

ஒவ்வொரு ஆண்டும் டிசம்பர் 7-ஆம் தேதி இராணுவக் கொடிநாளாக அனுசரிக்கப்படுகிறது.அன்றைய நாளில், நம் தேசத்தைக் காத்த வீரர்களின் தியாகங்களை நாம் நினைவு கூர்கிறோம். இராணுவத்தில் சேர்ந்து தேசத்திற்கு சேவை செய்வது ஒரு பெரிய கௌரவமாகும்”, என அவனது தந்தை பதிலளித்தார்.

Yazhini proudly declared, “When I grow up, I will join the army and serve the nation.” Anandhan said,”I will become a doctor, and treat the people.” Yazhini asked, “Why don’t you join the army and serve the nation like me?”

யாழினி பெருமையுடன், “நான் வளர்ந்த பிறகு இராணுவத்தில் சேர்ந்து தேசத்திற்கு பணியாற்றுவேன்”, என அறிவித்தாள். “நான் ஒரு மருத்துவராகி, மக்களுக்கு சிகிச்சையளிப்பேன்”, என்றான் ஆனந்தன். “நான் சொன்ன மாதிரி, நீயும் ஏன் இராணுவத்தில் சேர்ந்து தேசத்திற்கு பணியாற்றக்கூடாது?”, என யாழினி கேட்டாள்.

Father intervened her and said, “Joining the army is not the only way to serve the nation. Each one of us can serve the nation in our own way.” Yazhini asked, “Really dad? How can we serve the .nation?” Father said, “Serving in the army is a grace, but not everyone gets a chance to serve. But, each of us has a role in our society and, by doing that role we are serving our nation.”

அப்போது அவளது தந்தை குறுக்கிட்டு, “இராணுவத்தில் சேர்வது மட்டுமே தேசத்திற்கு சேவை செய்யும் ஒரே வழி என்று நினைக்கக் கூடாது”, என்று கூறினார். “உண்மையாகவா அப்பா? தேசத்திற்கு நாம் எப்படி சேவை புரியலாம்?”, என்று யாழினி கேட்டாள். “இராணுவத்தில் சேவை புரிவது என்பது ஒரு வரம். ஆனால் ஒவ்வொருவரும் அந்த வாய்ப்பை பெறுவதில்லை ஆனால் சமூகத்தில் நம் ஒவ்வொருவருக்கும் ஒரு பொறுப்பு இருக்கிறது. அதைச் செய்தாலே நமது தேசத்திற்கு சேவை செய்த மாதிரி தான்”, என்றார் அவள் தந்தை.

Father continued, “I will tell you the story of Karmugilan. He was a doctor. who died, serving the people. He was young and talented. He went to the USA for studying. His parents were very proud of him. They thought that he would live in the USA and continue his practice. But to everyone’s surprise, he came back to India and started treating poor people free of cost.”

“நான் உங்களிருவருக்கும் கார்முகிலனின் கதையைச் சொல்கிறேன். அவர் ஒரு மருத்துவர். மக்களுக்காவே சேவை செய்து இறந்துபோனார். அவர் இளமையானவர், மற்றும் திறமைசாலி. படிப்பதற்காக அமெரிக்கா போனார். அவரது பெற்றோர் அவரை நினைத்து பெருமை பட்டனர். அவர் அமெரிக்காவிலேயே வாழ்ந்து, அங்கேயே மருத்துவத்தைத் தொடருவார் என
அவர்கள் நினைத்தனர். ஆனால் எல்லோரும் ஆச்சர்யப்படும் வகையில் அவர் இந்தியாவுக்கு திரும்பிவந்து ஏழை மக்களுக்கு இலவசமாக மருத்துவம் பார்க்கத் தொடங்கினார்”, என்றார் யாழினியின் தந்தை.

Yazhini asked, “Were his parents not angry with him?” Dad said, “They were anary. But, they knew he was happy.”

அப்போது யாழினி கேட்டாள்: “அவரது பெற்றோர்கள் அவர் மீது கோபப்பட வில்லையா?” தந்தை சொன்னார் : “ஆம், அவர்களுக்கு கோபம் வந்தது. ஆனால் கார்முகிலன் மகிழ்ச்சியாக இருந்ததை அவர்கள் அறிந்தனர்”.

One day, dengue broke out in the nearby villages. He left to those villages to treat the people. He saved the lives of many. He was soon well known in the village, and people poured known in the village and people poured in to get treated.

ஒரு நாள், பக்கத்து கிராமங்களில் டெங்கு காய்ச்சல் பரவத்தொடங்கியது. அந்த மக்களுக்கு சிகிச்சை அளிக்க கார்முகிலன் அந்த கிராமங்களுக்குச் சென்றார். பலருடைய உயிரை அவர் காப்பாற்றினார். அந்த கிராமத்தில் அவர் மிகவும் பிரபலமடைந்து விட்டார். அவரிடம் சிகிச்சை பெறுவதற்காக மக்கள் வந்து குவிந்தனர்.

But, one day he got infected by the disease and was taken to the city hospital. He was in critical condition. His parents were upset and worried. He told his parents that he had done his duty to the country and, was happy. In a couple of days, he died. In his memory, the people of the village have built a hospital and treat people at free of cost.”

ஆனால் ஒரு நாள் அவரையும் அந்த நோய் தாக்கியது. அவர் நகர மருத்துவமனைக்கு எடுத்துச்செல்லப்பட்டார். அவர் மிக ஆபத்தான நிலையில் இருந்தார். அவரது பெற்றோர் வருத்தப்பட்டனர். தான் இந்த நாட்டிற்கு தன் கடமையை செய்துவிட்டதாகவும், அதனால் மகிழ்ச்சியுடன் இருப்பதாகவும் கார்முகிலன் தன் பெற்றோரிடம் கூறினார். அடுத்த சில நாட்களில் அவர் இறந்துவிட்டார். அவரது நினைவாக அந்த கிராமத்து மக்கள் ஒரு மருத்துவமனையைக் கட்டினார். அங்கு மக்களுக்கு இலவச வைத்தியம் கிடைக்கிறது”.

“That’s really great, dad. He is a real hero.”, said Yazhini.

“அது உண்மையிலேயே சிறப்பான ஒன்று தான், அப்பா. அவர்தான் உண்மையான நாயகன்”, என்றாள் யாழினி.

Father replied, “Each one of us should love and respect our country.” we should treat everyone around us with love and respect. That’s the real service to the nation.”

நாம் ஒவ்வொருவரும் நம் நாட்டை நேசித்து மதிக்க வேண்டும். நம்மை சுற்றியுள்ள ஒவ்வொருவரையும் அன்போடும், மரியாதையுடனும் | நடத்த வேண்டும். அதுவே தேசத்திற்கு செய்யும் உண்மையான சேவை”, என்றார் அவளது தந்தை.

The Guardians of the Nation Glossary:

Ceremony – A formal event to celebrate an anniversary (ஆண்டுவிழா )
Critical – Serious/dangerous (ஆபத்தான நிலை)
Declared – Said / stated (அறிவித்த ல்)
Grace – Blessing (வரம்)
Guarding – To watch over to protect or control (பாதுகாத்தல்)
Honour – Respect (மரியாதை)
Infected – Contaminated with harmful things (கேடுகளால் பாதிக்கப்படுதல்)
Intervened – Interrupt a conversation (குறுக்கிட்டு பேசுதல்)
Memorial – A structure established to remind of a person or event (நினைவுச் சின்னம்)
Munching – Eating something steadily (தொடர்ந்து கொறித்தல்)
Observed – Commemorated (அனுசரிக்கப்படுதல்)
Poured in – Came in great numbers (அதிக அளவில் வருவது)
Proudly – With pride (பெருமையுடன்)
Remember – Recall (நினைவுபடுத்துதல்)
Sacrifices – Giving up something more valuable (தியாகங்க ள்)
Serve – To work for (சேவை)
Talented – Skilled/expert (திறமையாளர்)
Upset – Unhappy (வருத்தப்படுதல்)
Worried – Distressed (கவலையடைதல்)
Wreath – Flowers arranged in a ring, for lying on a grave (கல்லறையில் வைக்கப்படும் மலர் வளையம் )

Tamilnadu State Board New Syllabus Samacheer Kalvi 5th English Guide Pdf Term 1 Prose Chapter 2 Trip to My Grandparents Village Text Book Back Questions and Answers, Summary, Notes.

Tamilnadu Samacheer Kalvi 5th English Solutions Term 1 Prose Chapter 2 Trip to My Grandparents Village

5th English Guide Trip to My Grandparents Village Text Book Back Questions and Answers

In-Text Question (Think):

Question 1.
Is TV and video game the only way to pass time? Can we do something else?
Answer:
Time is a non-renewable resource. Many people wasted their time playing video games and they regretted it in their later stage: Instead of playing video games, we can spend our time playing outdoor games, learning to play musical instruments like guitar etc., learning photography, painting etc.

Television is an easy and cheap source of entertainment. By watching the news, we can improve our general knowledge. Watching TV too much is not good for our health. It contributes to some health issues like obesity, sleep difficulties, etc.

Let us Understand:

A. Match the following:

Answer:

B. Answer the following questions:

Question 1.
How did Santhosh record his diary?
Answer:
Santhosh recorded his diary using his mother’s phone.

Question 2.
Name some of the activities that the village children were doing on their vacation.
Answer:
Playing with a tyre and a stick, milking cows, breaking groundnut pods and piling them, splashing in the pond, climbing to the top of a tamarind tree, playing hide and seek are the activities that the village children were doing on their vacation.

Question 3.
Why did Santhosh forget to watch television or play video games?
Answer:
Santhosh ‘trip to his grandparents’ home was so enjoyable to him. So he forgot to watch television or play video games.

Question 4.
Did Santhosh enjoy his morning walk? How do you know?
Answer:
Yes, Santhosh enjoyed his morning walk. He enjoyed the cool breeze and he felt that the air was also filled with the sweet sound of birds.

Question 5.
How did Santhosh spend his time when he went to the river?
Answer:
As he could not swim, Santhosh sat on a big smooth rock. He watched his friends swam like experts. He saw the pebbles in the riverbed and colourful fish swim by.

Question 6.
How did Santhosh know that the river was clean?
Answer:
The river is so clean as Santhosh could see the pebbles in the riverbed and colourful fish swim by.

Let us Build:

Let us learn some more tips to change singular to plural.
ஒருமையைப் பன்மையாக மாற்றுவதைப் பற்றி இங்கு காண்போம்.

Try this:

Question 1.

Answer:

1. Change -f and -fe, into -ves.

2. By changing their vowels, such as oo to ee or an to en.

3. Irregular plurals

4. Some nouns are identical in both the singular and the plural forms. Many of these are names of animals.

5. Add es for some words ending with o.

A. Look at the picture and tick (✓) the correct plural word:

Question 1.

Answer:

B. Write the plural form:

Question 1.

Answer:
Leaves

Question 2.

Answer:
Mangoes

5th English Guide Earth, The Desolated Home Additional Questions and Answers

Question 1.
Where did Santhosh go for his vacation?
Answer:
Santhosh went to his grandparents’ village, called Sirumalai.

Question 2.
How was the roadside look like?
Answer:
There were numerous trees with yellow flowers on both sides of the road.

Question 3.
What was the use of scarecrows?
Answer:
The scarecrows had managed to scare away the crows in the fields.

Question 4.
Name the birds that were seen in the paddy fields.
Answer:
Many white cranes were seen in the green paddy fields.

Question 5.
Write down the names of Paavai’s friends.
Answer:
Amir, Peter, and Umaiyal were Paavai’s friends.

Question 6.
Who took Santhosh to the river?
Answer:
Santhosh’ mother and his aunties took him to the river for a refreshing bath.

Write the plural form:

Question 1.
= ________
Answer:
Chairs

Question 2.
  = ________
Answer:
Boxes

Question 3.
= ________
Answer:
Spectacles

Question 4.
= ________
Answer:
Donkeys

Question 5.
= ________
Answer:
Radios

Question 6.
= ________
Answer:
Books.

Trip to My Grandparents Village Summary in English and Tamil

It is summer. Santhosh’ vacation has started. His parents are going to Sirumalai, his parents’ village. Santhosh is excited. He records an audio diary on his mother’s phone. He records all his feelings during the visit. Later, he writes down in his diary what he had recorded. Let’s read his diary to know his experiences during this visit.

இது கோடைக்காலம். சந்தோஷின் விடுமுறை | தொடங்கிவிட்டது. அவனது பெற்றோரின் கிராமமான சிறுமலைக்கு அவனது பெற்றோர் போகிறார்கள். சந்தோஷ் உற்சாகமாக ப’ இருந்தான். அவனது அம்மாவின் போனில் ஒலி வடிவில் நிகழ்வுகளை பதிவு செய்கிறான். அவனது பயணத்தின் போது அவனது எல்லா உணர்வுகளை பதிவு செய்கிறான். பின்னர் தனது டைரியில், தான் பதிவு செய்திருந்ததை எழுதிக் கொள்கிறான். அவனது விஜயத்தின் போது, அவனது அனுபவங்களை அறிந்து கொள்ள, அவனது டைரியை நாம் படிக்கலாம்.
28

10th April: 10 ஏப்ரல் :
I am very eager to visit my grand parents’ village. I will meet my grand parents and cousins. I have packed my clothes and tab for playing video games. We will be travelling in a bus. I am so excited.

என் தாத்தா பாட்டியின் கிராமத்திற்குப் போக நான் வெகு ஆர்வமாக இருக்கிறேன். அங்கு என் தாத்தா பாட்டியையும், உறவினர்களையும் நான் சந்திப்பேன். வீடியோவில் விளையாட்டுக்களை விளையாட ‘டேப்’ எனப்படும் கருவியையும், எனது
உடைகளையும் எடுத்துக் கொண்டேன். நாங்கள் ஒரு பேருந்தில் பயணிப்போம். நான் மிகவும் உற்சாகமாக இருக்கிறேன்.

11th April:11 ஏப்ரல்:
Today we are travelling. Though it is summer, the weather is pleasant in the morning. There are numerous trees with yellow flowers on both sides of the road. There is greenery all around. There are many white cranes in the lush green paddy fields. The scarecrows have managed to scare away the crows in the fields. There is no traffic, noise and air pollution in the village.

இன்று நாங்கள் பயணம் செல்கிறோம். கோடைக்காலமாக இருந்தாலும், காலையில் வானிலை இதமாக இருக்கிறது. சாலையின்
இருபுறங்களிலும் எண்ணற்ற மரங்கள் மஞ்சள் மலர்களுடன் உள்ளன. சுற்று வட்டாரம் முழுதும் பசுமையாக இருந்தது. பசுமையான நெல்வயல்களில் பல வெள்ளை கொக்குகள் இருந்தன. வயல்களில் காகங்களை பயமுறுத்தி விரட்ட மனித உருவ பொம்மைகள் இருந்தன. வாகனப் போக்குவரத்து, இரைச்சல், காற்று மாசு என்று எதுவும் கிராமத்தில் இல்லை.

I get off the bus and run to meet my grandparents. They are deliahted to see me. The house is surrounded by many big trees. There are a few jackfruit, mango, neem, banana, pomearanate and coconut trees. The trees have abundant fruits. My grandfather has plucked some ripe mangoes for me. The mangoes are so juicy and sweet.

நான் பேருந்திலிருந்து இறங்கி, என் தாத்தா பாட்டியைச் சந்திக்க ஓடினேன். அவர்கள் என்னைப் பார்த்ததில் பெரு மகிழ்ச்சியடைந்தனர். பல பெரிய மரங்கள் வீட்டைச் சூழ்ந்து இருந்தன. சில பலா, மா, வேம்பு, வாழை, மாதுளை, தென்னை மரங்கள் இருந்தன. மரங்களில் அதிக அளவில் பழங்களும் இருந்தன. சில பழுத்த மாம்பழங்களை என் தாத்தா எனக்காக பறித்தார். மாம்பழங்கள் மிகவும் சாறுடனும், சுவையுடனும் இருந்தன.

12th April: 12 ஏப்ரல் :
I have woken up early today. I am out for a walk in the morning. The cool breeze is pleasing. The coconut palms are swaying lazily. The farmers are already in their fields. Some of them are cutting the crops and some of them are threshing the paddy. The air is filled with the sweet sound of birds singing in the trees and the bushes. The cuckoo’s song is perhaps the most enchanting.

இன்று நான் சீக்கிரமாக எழுந்துவிட்டேன். காலையில் வெளியே நடைபயிற்சிக்காக.சென்றேன். குளிர்ந்த காற்று இதமாக இருந்தது.
தென்னை, பனை மரங்கள் சோம்பலுடன் அசைந்து கொண்டிருந்தன. விவசாயிகள் ஏற்கனவே அவர்களது வயல்களில் இருந்தனர். அவர்களில் சிலர் அறுவடை செய்தனர். சிலர் கதிர் அடித்தனர். மரங்களிலும், புதர்களிலும் இருந்த பறவைகளின் இனிமையான சத்தம், காற்றுடன் கலந்திருந்தது. குயிலின் பாட்டு மிகவும் மயங்க

When I come home, I freshen up and eat the tastiest breakfast in my life. Later, my grandmother introduces a girl, Paavai. She goes to the village school. She lives down the street. She is very eager to show me around the village. Paavai shows me how to play with a tyre and a stick. We happily run down the lanes balancing the tyre with a small stick. We stop to talk to Paavai’s friends, Amir, Peter and Umaiyal.

நான் வீட்டுக்கு வந்து, புத்துணர்வு பெற்று, என் வாழ்விலேயே சுவையான காலை உணவை சாப்பிட்டேன். பின்னர், பாவை என்ற ஒரு சிறுமியை என் பாட்டி என்னிடம் அறிமுகப்படுத்தினார். அவர் அங்கு கிராம பள்ளயில் படிக்கிறாள். அதே தெருவில் அவள் வாழ்கிறாள். எனக்கு கிராமத்தை சுற்றிக் காட்ட அவள் வெகு ஆர்வமாக இருந்தாள். ஒரு டயரையும், ஒரு தடியையும் கொண்டு எப்படி விளையாடுவது என அவள் காண்பித்தாள். சிறு தடியால் டயரை லாவகமாக ஒட்டிக் கொண்டு | நாங்கள் மகிழ்ச்சியுடன் தெருக்களில் ஓடினோம். பாவையின் நண்பர்களான அமீர், பீட்டர் மற்றும். உமையாள் ஆகியோரிடம் நாங்கள் பேசினோம்.

All children here too have their summer vacation. Amir is helping his father in milking their cows. He let me pat his black calf peter and Umaiyal are sitting with their grandmother breaking groundnut pods and piling them neatly. Later they will take the nuts to the village market to sell them. I help them for some time.

இங்கு எல்லா குழந்தைகளும் கோடை விடுமுறையை கொண்டாடினர். பசுக்களிடமிருந்து பால் கறப்பதற்கு அமீர் தன் தந்தைக்கு உதவியாக இருந்தான். அவனது கறுப்பு நிற கன்று குட்டியை 5C4025 தா பாivale c++ine + +oin தட்டிக் கொடுக்க என்னை அனுமதித்தான். பீட்டரும் உமையாளும் அவர்களது பாட்டியுடன் அமர்ந்தபடி வேர்க்கடலையின் மேல் தோலை உடைத்து, அதனை குவியலாக சேர்த்து வைத்தனர். பிறகு அவர்கள் வேர்க்கடலையை கிராம – சந்தைக்கு எடுத்துச் சென்று விற்றுவிடுவர். நானும் அவர்களுக்கு சற்று நேரம் உதவி செய்தேன்.

13th April:13 ஏப்ரல் :
Paavai takes me to the village pond There are many children splashing around in the pond. Some boys are climbing to the top of the tall tamarind tree. Girls are playing hide and seek near the big banyan tree.

கிராமத்தின் குளத்திற்கு பாவை என்னை அழைத்துச் சென்றாள். அந்த குளத்தில் பல குழந்தைகள் நீரில் விளையாடிக் கொண்டிருந்தனர். சில சிறுவர்கள் அங்கிருந்த உயரமான புளிய மரத்தின் உச்சிக்குச் செல்ல, மரத்தில் ஏறிக் கொண்டிருந்தனர். அங்கிருந்த பெரிய ஆலமரத்தின் அருகில் சிறுமிகள் கண்ணாமூச்சி’ விளையாடிக் கொண்டிருந்தனர்.

My mother and my aunties take me to the river for a refreshing bath. I play for some time in the cool water but I cannot swim. So, I sit on a smooth rock and watch my friends swim like experts. They talk and laugh a lot as they wash their clothes and dry their hair in the Sun. The river is so clean that I can see the pebbles in the riverbed and colourful fish swim by. I love the scenery.

என் அம்மாவும், என் அத்தைகளும் என்னை ஆற்றுக்கு அழைத்துச்சென்றனர், புத்துணர்வூட்டும் bia குளியலுக்காக. அந்த குளிர்ந்த நீரில் நான் சற்று நேரம் விளையாடினேன். ஏனெனில் என்னால் நீந்த முடியாது. ஆகவே, நான் ஒரு பெரிய வழுவழுப்பான பாறையின் மீது அமர்ந்து, எனது நண்பர்கள் (திறமைசாலிகளைப் போல) நீந்துவதை பார்த்துக் கொண்டிருந்தேன். அவர்கள் அதிகமாக பேசியபடியும், சிரித்தபடியும் இருந்தனர். அவர்கள் தங்கள் துணிகளை துவைத்தனர். சூரிய ஒளியில் தலைமுடிளை உலர்த்திக் கொண்டனர். அந்த ஆறு மிகவும் சுத்தமாக இருந்ததால், அங்கு கூழாங்கற்களையும், வண்ணமயமான மீன்கள் நீந்திச் செல்வதையும் என்னால் பார்க்க முடிந்தது. அந்த இயற்கைக் காட்சியை நான் விரும்பினேன்.

We are back to our home in the city. The trip to our grandparents home was so enjoyable. Those two days flew by so fast. I realised that during this stay. I had neither watched television nor played video games. I eagerly looking forward to our next visit.

சென்று வந்த பயணம் மிகவும் மகிழ்ச்சியைத் நான் டெலிவிஷன் பார்க்காததையும், வீடியோ விளையாட்டு விளையாடாததையும் உணர்ந்தேன். எனது அடுத்த பயணத்திற்காக நான் ஆவலுடன் எதிர்பார்த்து காத்திருக்கிறேன்.

Trip to My Grandparents Village Glossary:

Abundant – Plentiful (ஏராளமாக)
Crane – Large long-necked long-legged wading bird (கொக்கு )
Delighted – Happy (மகிழ்ச்சியடைதல்)
Eager – Keen (ஆர்வம்)
Enchanting – Attractive (மயங்க வைக்கிற)
Excited – Thrilled (உற்சாகமாக)
Experience – Knowledge or practical wisdom gained (அனுபவம் )
Expert – Well skilled (திறமைசாலி)
Feelings – General impressions/ emotions (உணர்வுகள்)
Later – Afterwards (பிறகு)
Lush – Plentiful (அதிகமாக)
Numerous – Great in number (எண்ண ற்ற)
Pebble – A kind of stone (கூழாங்கல்)
pile – Heap (up) (குவியல்)
pleasant – Nice (இனிமையான)
Pleasing – Giving pleasure (மகிழ்வூட்டும்)
Plucked – Pulled out (பறித்த ல்)
Pod – Shell (மேல் தோல்)
Pollution – Contamination (மாசு)
Pond – Tank/pool (குளம்)
Summer – The warmest season of the year (கோடை)
Surrounding – Encircled (சுற்றி சூழ்ந்த )
Swaying – Swinging (அசைந்தாடுதல்)
Threshing – Separating the grains (from plants) (கதிரடித்தல்)
Vacation – Holiday (விடுமுறை)

Tamilnadu State Board New Syllabus Samacheer Kalvi 5th English Guide Pdf Term 1 Prose Chapter 1 Earth, The Desolated Home Text Book Back Questions and Answers, Summary, Notes.

Tamilnadu Samacheer Kalvi 5th English Solutions Term 1 Prose Chapter 1 Earth, The Desolated Home

5th English Guide Earth, The Desolated Home Text Book Back Questions and Answers

In-Text Question (Think):

Question 1.
What actions destroy the Earth? How will you change it?
Answer:
Human beings are responsible for deteriorating nature. The following activities destroy the Earth:

1. Industrialisation : Industries release poisonous gases into the environment. Solid waste is discharged into land and water bodies, polluting the land and water.
2. Emission of harmful gases: Vehicles emit a huge amount of harmful gases that pollute the air.
3. Construction: Agricultural lands are used for construction.
4. Deforestation: We destroy forests for urbanisation. It leads to the destruction of the natural habitat of many wild animals and birds.
5. Nuclear testing: Uncontrolled release of radioactive materials cause several harmful health effects on human beings and animals. We can change it by not polluting the air, water, and land.

Let us understand:

A. Choose the correct option:

(astronomer, Earth,sol, fuels, Mars)

Question 1.
A day in Mars is called ______.
Answer:
Alien

Question 2.
______ is called the red planet..
Answer:
Mars

Question 3.
Our planet is called the ______.
Answer:
Earth

Question 4.
We get water by burning ______.
Answer:
Fuels

Question 5.
The ______ are trying to terraform Mars.
Answer:
Scientists

B. Fill in the blanks:

Question 1.
The man destroyed ______.
Answer:
The Earth

Question 2.
In the Earth, we get water from ______.
Answer:
Rain

Question 3.
In Mars ______ Earth days make a year.
Answer:
687

Question 4.
You don’t need ___ and __ in the Earth.
Answer:
A space suit; an Oxygen Cylinder

Question 5.
Fruits, vegetables, and water in Mars are not __
Answer:
Real

C. Answer the following questions:

Question 1.
What is the setting of the story?
Answer:
Life on Mars is the setting of the story.

Question 2.
Name the vegetables harvested in the vegetation hab.
Answer:
Crops and Carrots are harvested in the vegetarian hub.

Question 3.
What is a sol? How many sols make a year?
Answer:
A sol is Martian solar day. 687 sols make a year.

Question 4.
How water is produced in Mars?
Answer:
Water is produced by burning fuels on Mars.

Question 5.
In this story, what happened to the earth?
Answer:
Humans had destroyed the Earth.

Question 6.
What should be done to save the earth?
Answer:
To save the Earth, we should not pollute the air, water, and land.

Let us build:

Hi friends, we will show you magic. When we combine these two words, we will get a new word with a different meaning. These words are called compound words.
இரு வார்த்தைகள் இணைந்து ஒரு புதிய வார்த்தைக் கொடுத்தால் அது Compound word எனப்படும்.

Question 1.
= ______
Answer:

Question 2.
=________
Answer:

Question 3.
= ________
Answer:

A. Write the compound words from the picture:

Question 1.

Answer:

Question 2.

Answer:

Question 3.

Answer:

Question 4.

Answer:

B. Use the clues to complete the compound words:

Question 1.

Answer:

Question 2.

Answer:

Question 3.

Answer:

C. Match the compound words:

Question 1.

Answer:

D. Draw and write your own compound words:

Question 1.
= ______.
Answer:

Question 2.
= ______.
Answer:

Question 3.
= ______.
Answer:

Question 4.
= ______.
Answer:

Question 5.
= ______.
Answer:

E. Connect the compound words and create a new word:

Question 1.

Answer:

Question 2.

Answer:

Question 3.

Answer:

Question 4.

Answer:

5th English Guide Earth, The Desolated Home Additional Questions and Answers

Question 1.
Write down the year in which the story was set.
Answer:
The story was set in the year 2068.

Question 2.
How many colonies did India establish on Mars?
Answer:
India established three colonies on Mars.

Question 3.
Who travelled more than 1500 km to meet Arivumathi?
Answer:
Arivumathi’s grandfather travelled more than 1500 km to meet her.

Question 4.
Where was Arivumathi sleeping?
Answer:
Arivumathi was sleeping in her capsule.

Question 5.
What is meant by dust storm?
Answer:
A dust storm is a storm in which strong winds carry a lot of dust.

Question 6.
How many sols did her grandfather take to reach her colony?
Answer:
Her grandfather took three sols to reach her colony.

Question 7.
What is the reason for the tastiness of fruits and vegetables grown in the Earth?
Answer:
The Earth had fertile soil. So the fruits and vegetables grown were tasty.

Question 8.
According to Arivu in which planet survival was very difficult?
Answer:
According to Arivu, survival was very difficult in Mars.

Question 9.
What would be the age of Arivu, if she lived on the Earth?
Answer:
Arivu would be 18 years old if she lived on the Earth.

Question 10.
Who is trying to Terraform the planet Mars?
Answer:
The scientists are trying to Terraform the planet Mars.

Question 11.
What is meant by Terraform?
Answer:
Terraform is a process by which the surface and climate would be changed to make the environment suitable to humans.

Earth, The Desolated Home Summary in English and Tamil

Let us Learn:

Earth, the Desolated Home பூமி, பாழாக்கப்பட்ட வீடு

It was the year 2068, humans had 2068 destroyed the Earth, and started colonizing the red planet Mars. India established three colonies; Arivumathi’s family lived in one such colony. On her birthday, her grandfather travelled more than 1500 km to meet her. When he reached, he saw her sleeping in her capsule.

2068 ஆம் வருடம். பூமியை (வாழ வழியற்றதாக) அழித்துவிட்ட மனிதர்கள் சிவப்பு கோளான செவ்வாய் கோளில் வாழ்விடங்களை ஏற்படுத்த தொடங்கினர். இந்தியா மூன்று காலனிகளை அமைத்திருந்தது. அத்தகைய ஒரு காலனியில் அறிவுமதியின் குடும்பமும் வசித்தது. அவளது பிறந்த நாளுக்காக 1500 கி.மீ. தொலைவிற்கும் அதிகமாக அவளது தாத்தா பயணம் செய்து அவளைக் காண வந்தார். அவர் அங்கு வந்தபோது, உருளை வடிவ படுக்கையில் அவள் உறங்கிக் கொண்டிருந்தாள்.

He said, “Wake up, Arivu.” Arivumathi was surprised, “Grandpa! When did you come? I was thinking” that you won’t be coming for my birthday.” He sighed, “Don’t you know about the dust storm of Mars? Sometimes, it even lasts for a month. But this time it did not. So I am on time. It still took me three sols to reach here. Now come on, let’s not waste time. We will go to harvest the vegetation.

எழுந்திரு அறிவு”, என்றபடி அவர் அவளை எழுப்பினார். அறிவுமதி ஆச்சரியமடைந்தாள். “தாத்தா, எப்போது வந்தீர்கள்? என் பிறந்த நாளுக்கு நீங்கள் வரமாட்டீர்கள் என்று நான் நினைத்துக் கொண்டிருந்தேன்”, என்றாள் அவள். அவர் பெருமூச்சு விட்டார். “செவ்வாய் கோளில் உள்ள புழுதிப் புயல் பற்றி உனக்குத் தெரியாதா? சில சமயம் அது ஒரு மாதம் வரையிலும் கூட நீடிக்கும். ஆனால் இந்த முறை அப்படியல்ல. ஆகவே நான் சரியான hab for vegetables.”. நேரத்திற்கு வந்து விட்டேன். இங்கு வர எனக்கு மூன்று நாட்கள் ஆகிவிட்டன. சரி, வா. நேரத்தை வீணாக்க வேண்டாம், நாம் காய்கறி தோட்டத்திற்குச் சென்று காய்கறிகளை அறுவடை செய்வோம்” என்றார் அவர்.

In the hab, he said, “Hmm, these carrots are not tasty anymore, like the ones I ate in my childhood.” She asked, “Why do you say so, Grandpa?” Grandfather explained, “The vegetables we grow here do not taste like the ones on the Earth. I really wish you had tasted the carrots from the Earth.” Arivu asked eagerly, “How did they grow the crops and vegetables on The Earth?”

காய்கறி தோட்டத்திற்கு வந்த அவர், “நான் குழந்தைப் பருவத்தில் சாப்பிட்டது போல, இந்த கேரட்கள் சுவையாக இல்லை” என்றார். “ஏன் அப்படிச் சொல்கிறீர்கள்,” என்று கேட்டாள் அவள். “இங்கு நாம் வளர்க்கும் காய்கறிகள், பூமியில் பூமியில் இருந்தது போல சுவையாக இல்லை. பூமியில் விளைந்த கேரட்களை நீ சாப்பிட்டுப் பார்த்திருக்க வேண்டும் என விரும்பினேன்,” என்றார் அவர். “பூமியில் பயிர்களையும், காய்கறிகளையும் அவர்கள் எவ்வாறு வளர்த்தார்கள்?”, என அறிவு ஆர்வத்துடன் கேட்டாள்.

Now, the grandfather was sad, like he is missing the Earth. He said, “The Earth had fertile soil, so the fruits and vegetables grown were healthy and tasty.” She asked, “But, I learnt that humans used chemical fertilizers, and polluted the soil. Here, we get unpolluted food and water. Is that correct?”

பூமியில் தான் வாழ முடியாததற்கு தாத்தா இப்போது வருத்தப்பட்டார். “பூமியில் வளமான மண் இருந்தது. ஆகவே அதில் விளைந்த பழங்களும், காய்கறிகளும் சுவையாகவும், ஆரோக்யம் தருவதாகவும் இருந்தன ,” என்றார் அவர். “ஆனால், மனிதர்கள் இரசாயன உரங்களைப் பயன்படுத்தி நிலத்தை மாசுபடுத்தியதாக நான் அறிந்தேன். இங்கே மாசுபடாத உணவும் தண்ணீ ரும் நமக்கு கிடைக்கிறது. சரிதானே?”, என்றாள் அறிவுமதி.

Grandfather laughed, “Already, I told you. These fruits, vegetables, and water are not the same as in the Earth. They are not real.” Arivu exclaimed, “Even the water?” He said “Of course! In Mars, we get water from burning fuels. On the Earth, we used to get water from rain, it was natural, and it was free!” She said “Grandpa, enough of your stories about the Earth. I know that life there was easy but, here survival is very difficult.” He replied, “Yes my dear, adapting to Mars is difficult. Today, we are fighting for things which we got easily.”

தாத்தா சிரித்தபடி, “ஏற்கனவே நான் உனக்குச் சொன்னேன், இந்த பழங்கள், காய்கறிகள் மற்றும் நீர் ஆகியன பூமியில் இருந்தது போல இல்லை. இவை இயற்கையானதல்ல, என்றார். அறிவு வியந்தபடி, “தண்ணீ ர் கூடவா?”, என்று கேட்டாள். அவர் சொன்னார், “ஆம்! செவ்வாயில் எரிபொருள்களை எரிப்பதால் நமக்கு தண்ணீர் கிடைக்கிறது. பூமியிலோ, இயற்கையாகப் பெய்யும் மழையால் நாம் நீர் பெற்றோம், அதுவும் இலவசமாக. “தாத்தா, பூமியைப் பற்றிய உங்கள் கதைகள் போதும். அங்கு வாழ்க்கை எளிதாக இருந்ததென எனக்குத் தெரியும். ஆனால் இங்கு வாழ்வது மிகவும் சிரமம்,” என்றாள் அவள். “ஆம், என் செல்லம்! செவ்வாய் கோளுக்கு ஏற்றபடி நாம் மாறுவது சிரமம்தான். முன்பு சுலபமாக நமக்கு கிடைத்தவைகளுக்கொல்லாம் இப்போது நாம் சண்டையிட்டுக் கொண்டிருக்கிறோம்,” என்று அவர் பதிலளித்தார்.

He continued, “In the Earth, you did not need a spacesuit or an oxygen cylinder. Also, the years are longer here.” Arivu said, “Yes, grandpa. In Mars, 687 days make a year.” He smiled, “Ha! Ha! Yes, you would be 18 years old on the Earth now.”

“விண்வெளி ஆடையோ, ஆக்ஸிஜன் சிலிண்டரோ பூமியில் உனக்கு தேவைப்படாது. என்று தாத்தா கூறினார். “ஆம், தாத்தா, செவ்வாயில் ஓர் ஆண்டுக்கு 687 நாட்கள்,” 18என்றாள் அறிவு. தாத்தா புன்னகைத்தபடி, “ஆம், பூமியில் உன் வயது இப்போது 18 ஆக இருந்திருக்கும்,” என்றார்.

Grandpa thought to himself, “We destroyed our home. The home that nature had offered us. Now, we are trying to make this our home.”

தாத்தா தன் மனதிற்குள் நினைத்துக் கொண்டார், “நாம் நமது வீட்டை அழித்து விட்டோம். அது இயற்கை நமக்கு அளித்த வீடு. இப்போது, இதனை நமது வீடாக மாற்ற முயற்சிக்கிறோம்.

Arivu looked at him and said, “Don’t, worry grandpa, the scientists are “trying to Terraform the Mars.” He said, “True, but nothing can be the Earth. Earth is our home. Ah, let us leave this for now. Today we should celebrate.”

நாம் வாழ்வதற்கு வசதியாக இருக்கும்படி விஞ்ஞானிகள் – மாற்ற முயற்சி செய்து கொண்டிருக்கிறார்கள்,” என்றாள். விட்டுவிடுவோம். இன்று நாம் கொண்டாட வேண்டும்,” என்றார் அவர்.

Earth, The Desolated Home Space Glossary

Adapting – Modify, readjust (வாழ்வதற்கு ஏற்றவாறு தன்னை மாற்றிக் கொள்ளுதல்)
Capsule – A small cylinder-shaped bed (உருளை வடிவ படுக்கை )
Celebrate – Rejoice (கொண்டாடு)
Crops – cultivated plants (பயிர்கள்)
Destroyed – Ruined, spoiled (அழித்த ல்)
Eagerly – Excitedly (ஆர்வத்துடன்)
Established – Set up (அமைத்தல்)
Exclaimed – Cry out suddenly with surprise (வியப்புடன் சத்தமிடுதல்)
Fertile – Productive (செழிப்பான / வளமான)
Fuels – An energy source for engines, power plants, or reactors (எரிபொருட்கள்)
Grow – Develop, rise (வளர்த்த ல்)
Hab – Habitat, human settlement (தங்குமிடம்)
Harvest – Reap (அறுவடை)
Last – Continue (நீடித்தல் / தொடருதல்)
Offered – Provided (வழங்குதல்)
Polluted – Contaminated (மாசுபடுத்துதல்)
Sad – Unhappy (வருத்தம்)
Scientist – An expert in science (விஞ்ஞானி)
Sighed – To exhale audibly in a long deep breath, as in weariness or relief (பெருமூச்சு விடுதல்)
Soil – Land (மண் / நிலம்)
Sol – Martian solar Day, A Martian day (செவ்வாய் கோளில் ஒரு நாள் ஒரு நாள்)
Started – Began (ஆரம்பித்தல்)
Storm – Tempest (புயல்)
Surprised – Amazed (வியப்படைதல்)
Survival – To remain alive (உயிர் வாழ்வது)
Terraform – A process by which the surface and climate would be changed to make the environment suitable to humans
(வாழ்வதற்கு ஏற்றபடி மாற்றியமைக்கும் முறை)
Travelled – To go from place to place (பயணித்த ல்)
Unpolluted – Clean (மாசுபடாத, சுத்தமான)

Tamilnadu State Board New Syllabus Samacheer Kalvi 5th Science Guide Pdf Term 3 Chapter 3 Air Text Book Back Questions and Answers, Notes.

Tamilnadu Samacheer Kalvi 5th Science Solutions Term 3 Chapter 3 Air

Samacheer Kalvi 5th Science Guide Air Text Book Back Questions and Answers

Evaluation

I. Choose the correct answer:

Question 1.
Chlorofluorocarbon is used in
a) refrigerator
b) air conditioners
c) Both a & b
d) None
Answer:
(c) Both a & b

Question 2.
Which of the following gas is released by automobiles?
a) Carbon monoxide
b) Oxygen
c) Hydrogen
d) Nitrogen
Answer:
(a) Carbon monoxide

Question 3.
A wind mill is used to produce .
a) chemical energy
b) mechanical energy
c) electric energy
d) All of these
Answer:
(c) electric energy

Question 4.
Influenza is caused by
a) fungus
b) bacteria
c) virus
d) protozoa
Answer:
(c) virus

Question 5.
Height of mesosphere which lies after troposphere is
a) 70 to 75km
b) 75to 80 km
c) 80 to 85 km
d) 85to 90 km
Answer:
(c) 80 to 85 km

II. Fill in the blanks:

Question 1.
Second highest layer of Earth’s atmosphere is _______.
Answer:
Thermosphere

Question 2.
Releasing substances like chemical compounds into the atmosphere is known as _______.
Answer:
Air pollution

Question 3.
Airborne diseases can be caused by _______.
Answer:
Microorganisms

Question 4.
The _______ layer protects us from the harmful UV rays coming from the sun.
Answer:
Ozone

Question 5.
________ is used by plants as nitrates.
Answer:
Nitrogen

III. Match the following:

Answer:

IV. Answer briefly:

Question 1.
What are the different layers of atmosphere?
Answer:

• Atmosphere is divided into five different layers.
• The layers from the bottom upwards are called Troposphere, Stratosphere, Mesosphere, Thermosphere, and Exosphere.

Question 2.
What is air pollution?
Answer:
The presence of harmful substances in the air which can have an adverse effect on living beings and the environment is called air pollution.

Question 3.
Name some of the airborne diseases.
Answer:
Diphtheria, Whooping Cough, and Tuberculosis are some of the common airborne diseases caused by bacteria.

Question 4.
What is global warming?
Answer:

• Air pollution results in the accumulation of carbon dioxide in the atmosphere.
• When gases like carbon dioxide are present in the atmosphere in a large amounts, they increase the atmospheric temperature.

Question 5.
Mention two ways of controlling air pollution.
Answer:

• Using public modes of transport can reduce the rate of pollution.
• By reducing the usage of fossil fuels for burning.

V. Answer in detail:

Question 1.
List the importance of air.
Answer:

• Air is important for all living organisms.
• Without air no life can exist on the Earth.
• We take in oxygen from the air and release carbon dioxide. :
• Plants in turn use carbon dioxide present in the air to produce their food.
• The gases such as oxygen, nitrogen, carbon dioxide, and hydrogen present in the air are important to us for many reasons.

Water Cycle:
Water vapour present in the air is important for the formation of water cycle.

Supplies Energy:

• We breathe oxygen present in the air and it is supplied to the cells in our body.
• Body cells burn the food molecules with the help of oxygen and produce energy.

Sound travels through air:
Sound travels from the point of generation to the listener through air.

Useful for plants:

• Nitrogen present in the air is useful for plants.
• The nitrogen in the atmosphere is converted into easily absorbable nitrates by plants with the help of some microbes.

Transport:

• Movement of air is called wind.
• This is helpful for the ships and boats to sail on the water. Airplanes and helicopters travel through air.

Sports:

• Paragliding and hang gliding are air sports and they are possible with the help of air.
• Other sports like windsurfing, kite surfing, and sailing are also possible with the help of air.

Parachutes and Hot air balloons:

• Parachutes and hot air balloons are used to land from above.
• In case of emergency, people use parachutes and come down slowly and safely with the help of air.

Wind energy:

• Air flows from a region of high pressure to low pressure.
• This flow of air at high speed is called wind.
• This wind is used to generate electric power with the help of windmills.

Question 2.
Explain any three airborne diseases.
Answer:
Common cold:

• Common cold is an infectious disease which affects the upper respiratory system like the nose and throat and it is easily spread.
• Symptoms of the common cold include cough, painful throat, running nose, and sometimes fever.
• Though many viruses can cause this, it is generally caused by Rhinovirus.

Influenza:

• Influenza is commonly found during childhood.
• It is caused by the virus, Myxo virus, and results in inflammation of nasal mucosa and pharynx.
• It is also known as flu.

Mumps:

• It is caused by Myxovirus parotitis and it affects the upper respiratory tract.
• Some of the common symptoms of mumps include fever, headaches, sore throat, and swelling of parotid glands which makes jaw movement difficult.

VI. Higher-order Thinking Questions:

Question 1.
If there is no atmosphere, what will be the condition of Earth?
Answer:
Without atmosphere means no life as there will be no oxygen which is essential for Earth’s organism to thrive on the planet Earth.

Question 2.
Give some suggestions to prevent air pollution.
Answer:

• Planting more trees can reduce the amount of carbon dioxide in the atmosphere.
• Reduce the use of automobiles and use public transports.
• Avoid aerosol spray products.

Activities:

Activity 1.
Find out the places where wind energy is produced. Also, discuss about the importance of wind energy in the classroom and make a report on your discussion.
Answer:
Tamil Nadu – First place in wind energy production.
Maharashtra – Second place in wind energy production.
Gujarat – Third place in wind energy production.
Rajasthan, Karnataka, Madhya Pradesh, Andhra Pradesh, Telangana, Kerala, Odisha, West Bengal, Jammu and Kashmir are the states producing wind power energy in India.

Importance of wind energy:

• Wind energy is a source of renewable energy.
• It does not contaminate.
• It is inexhaustible and reduces the use of fossil fuels.
• Wind energy does not generate waste and contaminated water.

Activity 2.
Find out the common air pollutants present in your area. Discuss about the effects of these pollutants. Record your observation in your notebook.
Answer:

Samacheer Kalvi 5th Science Guide Air Additional Questions and Answers

I. Choose the correct answer:

Question 1.
Atmosphere is composed of________ nitrogen.
(a) 68%
(b) 78%
(c) 58%
(d)21%
Answer:
(b) 78%

Question 2.
Atmosphere is divided into _______ different layers.
(a) 5
(b) 4
(c) 6
(d) 3
Answer:
(a) 5

Question 3.
__________ is the lowest layer of the atmosphere.
(a) Troposphere
(b) Stratosphere
(c) Mesosphere
(d) Exosphere
Answer:
(a) Troposphere

Question 4.
Nitrogen fixation occur in ______.
(a) Humans
(b) animals
(c) plants
(d) All the above
Answer:
(c) plants

Question 5.
__________ is an air sport.
(a) Paragliding
(b) Hang gliding
(c) both a & b
(d) None of these
Answer:
(c) both a & b

II. Fill in the blanks:

Question 1.
_______ is known as paragliding capital of India.
Answer:
Himachal Pradesh

Question 2.
The movement of air is called ______.
Answer:
wind

Question 3.
________ found above the mesosphere.
Answer:
Thermosphere

Question 4.
The word pollution is derived from the Latin word ______.
Answer:
Polluere

Question 5.
Extraction of minerals from the Earth is ______.
Answer:
Mining

III. Say True or False. If false, correct the statement:

Question 1.
World Tuberculosis Day is observed on 24th March.
Answer:
True

Question 2.
Causative organism of Tuberculosis is Cornebacterium.
Answer:
False
Correct statement:
Causative organism of Tuberculosis is Mycobacterium.

Question 3.
Influenza is commonly found in adults.
Answer:
False
Correct statement:
Influenza is commonly found in childhood.

Question 4.
Mumps affects the upper respiratory tract.
Answer:
True

Question 5.
Air pollutants cause pneumonia.
Answer:
True

IV. Match the following:

Answer:

1. d
2. c
3. b
4. a

V. Answer briefly:

Question 1.
What is mesosphere?
Answer:

• The region above the stratosphere is called the mesosphere.
• It extends upward to a height of about 85km from the ground.
• The temperature in this layer decreases with height and it is -1100 C.

Question 2.
What is wind?
Answer:

• Air flows from a region of high pressure to low pressure.
• This flow of air at high speed is called wind.

Question 3.
Why do plants need nitrogen?
Answer:

• Nitrogen present in the air is useful for plants.
• The nitrogen in the atmosphere is converted into easily absorbable nitrates by plants with the help of some microbes.
• It is known as nitrogen fixation. These nitrates are useful for the growth of plants.

Question 4.
Write a short note on chickenpox.
Answer:

• It is common among children but adults also may get it.
• Affected people will have blisters or spots in the body and face along with fever.
• Those blisters with fluid will drain but sometimes it may leave scars.

Question 5.
Why mountain climbers carry oxygen while climbing?
Answer:

• As the height increases, the amount of air in the atmosphere decreases and so the oxygen level will decrease.
• That is why mountain climbers carry oxygen cylinders while climbing mountains.

Question 6.
How is acid rain formed?
Answer:

• Harmful gases like nitrogen oxides and sulfur oxides are released into the atmosphere while burning fossil fuels.
• When it rains, the water droplets combine with these gases and fall on the ground in the form of acid rain.

VI. Answer in detail:

Question 1.
How can we prevent airborne disease?
Answer:

• Avoid close contact with people who have active symptoms of disease.
• Maintain personal hygiene.
• Keep the patient in complete isolation.
• Cover nose and mouth while sneezing or coughing.
• Avoid touching the face or other people with unwashed hands.
• Wash your hands thoroughly.
• Timely vaccination can prevent the diseases.

Question 2.
What are the common diseases caused by bacteria?
Answer:
Diphtheria, Whooping Cough, and Tuberculosis are some of the common airborne diseases caused by bacteria.

Diphtheria:

• It is caused by bacteria, Corynebacterium diphtheria.
• It generally affects the upper respiratory tract (nose and throat) and causes fever, sore throat, and choking of air passage.

Whooping Cough:

• Whooping cough is caused by Bordetalla pertusis.
• It also affects the respiratory tract and causes mild fever, severe cough ending in a whoop.

Tuberculosis:

• Tuberculosis is caused by the bacteria, Microbacterium tuberculosis.
• When we breathe, the bacteria present in the air gets into the lungs and affect it.
• Infected person has to be treated with anti-tubercular drugs for a period of 6 months to one year.

Tamilnadu State Board New Syllabus Samacheer Kalvi 5th Science Guide Pdf Term 3 Chapter 2 Animals Text Book Back Questions and Answers, Notes.

Tamilnadu Samacheer Kalvi 5th Science Solutions Term 3 Chapter 2 Animals

Samacheer Kalvi 5th Science Guide Animals Text Book Back Questions and Answers

Evaluation

I. Choose the correct answer:

Question 1.
Fission is a way of ______ reproduction
(a) sexual
(b) asexual
(c) viviparous
(d) oviparous
Answer:
(b) Asexual

Question 2.
______ is an oviparous animal.
(a) Cow
(b) Deer
(c) Goat
(d) Duck
Answer:
(d) Duck

Question 3.
Endangered animals are protected in ______.
(a) museums
(b) circus
(c) farm
(d) sanctuary
Answer:
(d) Sanctuary

Question 4.
Mundanthurai sanctuary is located in ______ district.
(a) Thiruppur
(b) Tiruvarur
(C) Thirunelveli
(d) Thiruvallur
Answer:
(c) Thirunelveli

Question 5.
The vision of Blue Cross is ______ animal.
(a) Hunting
(b) capturing
(c) saving
(d) neglecting
Answer:
(c) Saving

II. Fill in the blanks:

Question 1.
Animals which give birth to young ones directly are named as ______.
Answer:
Mammals

Question 2.
______ of animals leads to endangered condition.
Answer:
Hunting

Question 3.
Gir National Park is famous for ______.
Answer:
Asiatic Lions

Question 4.
Blue Cross is an ______ welfare organization.
Answer:
Animal

Question 5.
Nilgiri Tahr is an ______ species.
Answer:
Endangered

III. Match the following:

Answer:

IV. Answer briefly:

Question 1.
What is fertilization?
Answer:
When the male gamete reaches the female gametes they begin to fuse together. The fusion of gametes is known as fertilization.

Question 2.
What are the different stages of sexual reproduction?
Answer:
Sexual reproduction consists of the following stages.

• Pre-fertilization
• Fertilization
• Post-fertilization.

Question 3.
Mention the different types of asexual reproduction.
Answer:
Fission, Budding, Fragmentation, and Spores are the different types of asexual reproduction.

Question 4.
Differentiate between oviparous and viviparous animals.
Answer:

Question 5.
Write anote on Blue Cross.
Answer:

• Blue Cross is a registered animal welfare charity in the United Kingdom.
• It was established in 1897 with the vision that every pet will enjoy a healthy life in a happy home.
• The charity provides support for pet owners who cannot afford private veterinary treatment.
• Helps to find homes for unwanted animals, and educates the public in the responsibilities of animal ownership.

V. Answer in detail:

Question 1.
Explain the methods of asexual reproduction.
Answer:
Fission :

• Fission occurs in some invertebrate (organisms without backbone), multi-celled organisms.
• In this method, an organism splits itself into two parts.
• For example, flatworms, sea anemones, and sea cucumbers divide into two halves and regenerate the other half in each of the resulting individuals.

Budding:

• Budding is a form of asexual reproduction that results from the outgrowth of a part of the body.
• Then the bud is separated from the original organism forming two individuals.
• Budding occurs commonly in some invertebrate animals such as hydras and corals.

Fragmentation:

• Fragmentation is the breaking of an individual into parts followed by regeneration.
• Reproduction through fragmentation is observed in sponges and sea stars.
• Fragmentation may occur through accidental damage, damage from predators, or as a natural form of reproduction.

Spores:

• Some protozoan, bacteria, plants, and fungi reproduce via spores.
• Spores are the structures naturally grown as part of an organism’s life cycle.
• They are separated from the organism and dispersed through a medium such as air or water.
• In a suitable environment, the spores will develop into a fully grown organism.

Question 2.
What are the causes of the extinction of animals?
Answer:

• Forests are destroyed for human needs.
• More animals are hunted for their horns, skin, teeth, and many other valuable products.
• Pollutions like air pollution and water pollution affect the animals.
• Sometimes animals are taken to new habitats by people. They cannot survive there.
• Pesticides and chemicals are used to get rid of insects, pests, or weeds, poison the plants and animals.
• Natural disasters like floods, cyclones, and fire also destroy animals.

Question 3.
Write an essay about National parks and wildlife sanctuaries.
Answer:
A National park is an area which is strictly reserved for the betterment of the wild life. In these areas, activities like forestry, grazing, or cultivation are not permitted.
Some Important National parks:

Jim Corbett National Park:

• It is located close to Nainital, in Uttarakhand.
• Tigers are found in this park.
• Several species of deer, leopards, jackals, red foxes, black bears, sloth bears, and are also found.

Gir Forest National Park:

• It is located in Gujarat.
• Asiatic lions in their natural habitat can be seen here. Other animals sambar, chinkara, chital, porcupine, wild boar, and blackbuck can be seen here.

Kaziranga National Park:

• Wild animals such as Rhinoceros, Tiger, Elephant, Wild Buffalo, and Swam are seen here.
• Also has bears, leopards, and several species of local and migratory birds.
• This park is famous for one-horned Rhino.

Sundarban National Park:

• Located in West Bengal.
• The Sundarban National Park is a Tiger and Biosphere Reserve on the Ganges
• Bengal tiger, saltwater crocodile, wild boars, foxes, leopard cats, huge turtles, ( river dolphins, and several other varieties of mammals and reptiles, along with a variety of local and migratory birds can be seen here.

Kanha National Park:

• Kanha National Park located in Madhya Pradesh was established as a part of Project Tiger.
• Apart from tigers, animals such as elephants, jackals, leopards, striped hyenas, monkeys, and several varieties of deer including black buck, swamp deer, chital, and sambhar are seen here.

Periyar National park:

• Periyar National Park is in Thekkady, Kerala.
• Various species including the majestic elephants, royal tigers, and fishes, reptiles and birds can be seen here.

Guindy National park:

• This park is located at the heart of Chennai city.
• It is home to spotted deer, blackbucks, white bucks, river otter, hyena, bonnet monkey, civet cat, jackals, pangolin, hedgehog and common mongoose, etc.

Wildlife Sanctuary:
Kalakkad Wildlife Sanctuary:

• The Kalakkad wildlife sanctuary is famous for Tigers.
• Lion-tailed macaque, Nilgiri langur, bonnet macaque, langur, Nilgiri tahr, sambar, sloth bear, gaur, elephant, flying squirrel, panther, wild dog, and pangolin are some of the animals found here.

Mudumalai Wildlife Sanctuary:

• It is located in Ooty.
• Bengal Tiger, Giant Elephant, and Leopard are found here.
• Elephant safari is famous in this sanctuary.

Mundanthrai Wildlife Sanctuary:

• It is located in Thirunelveli District.
• The major wildlife animal found here is Tiger.

Activities:

Activity 1.
List out any three oviparous and viviparous animals in the table given below.
Answer:

Samacheer Kalvi 5th Science Guide Animals Additional Questions and Answers

I. Choose the correct answer:

Question 1.
______ is the biological process by which an organism gives rise to a new organism.
(a) Species
(b) Generation
(c) Reproduction
Answer:
(c) Reproduction

Question 2.
______ is the first stage of sexual reproduction.
(a) Fertilisation
(b) Pre-fertilisation
(c) Post-fertilisation
Answer:
(b) Pre-fertilisation

Question 3.
______ fertilisation takes place in frogs and fish.
(a) Internal
(b) External
(c) Post
Answer:
(b) External

Question 4.
The zygote divides repeatedly into a group of cells, which develops into different tissues and organs constituting a full body. This structure is known as ______.
(a) egg
(b) embryo
(c) zygote
Answer:
(b) Embryo

Question 5.
Animals in which an embryo develops outside the body are called ______ animals.
(a) oviparous
(b) viviparous
(c) oviparous
Answer:
(a) Oviparous

Question 6.
______ lay thousands and sometimes millions of small, soft eggs in water.
(a) Oviparous
(b) Amphibians
(c) Viviparous
Answer:
(b) Amphibians

Question 7.
The eggshell protects the ______ from the outer environment.
(a) embryo
(b) yolk
(c) larva
Answer:
(a) Embryo

II. Fill In the blanks:

Question 1.
________ are organisms without backbone
Answer:
Invertebrate

Question 2.
The type of reproduction in which only a singe parent, gets divided into two new offspring is known as ______.
Answer:
Asexual reproduction

Question 3.
________ is one of the asexual method of reproduction.
Answer:
Fission

Question 4.
In ______ animals, the development of the embryo takes place inside the body.
Answer:
viviparous

Question 5.
_________ is a form of asexual reproduction that results from the outgrowth of a part of the body.
Answer:
Budding

Question 6.
________ is the breaking of an individual into parts followed by regeneration.
Answer:
Fragmentation

III. Say True or False. If false, correct the statement:

Question 1.
Spores are the structures naturally grown as part of an organism’s life cycle.
Answer:
True

Question 2.
An animal is said to be endangered if its population is currently less than 50 or less than 2500 for the past three years
Answer:
False
Correct statement:
An animal is said to be endangered if its population is currently less than 50 or less than 250 for the past three years.

Question 3.
Biodiversity is the term used to describe different plants, animals, micro-organisms and insects, etc.
Answer:
True

Question 4.
Hunting and poaching animals should be encouraged.
Answer:
False
Correct statement:
Hunting and poaching animals should be prohibited.

Question 5.
Pesticides and chemicals used to get rid of insects, pests or weeds, poison the plants and animals.
Answer:
True

IV. Match the following:

Answer:

1. d
2. a
3. e
4. c
5. b

V. Answer briefly:

Question 1.
Name the two ways by which fertilisation in animals takes place.
Answer:
Fertilisation in animals takes place in two ways. They are: External fertilization and Internal fertilization

Question 2.
Explain the term reproduction.
Answer:

• Reproduction is the biological process by which an organism gives rise to a new organism.
• This process is seen in all living organisms – both plants and animals. Reproduction is essential for the continuation of similar kinds of species, generation after generation.
• In animals, sexual and asexual reproduction are seen.

Question 3.
What is external fertilisation?
Answer:

• External fertilization takes place outside the animal’s body.
• It usually takes place in aquatic environments where both eggs and sperm are released into the water.
• Fertilization in frogs and fish takes place by this method.

Question 4.
What are oviparous animals?
Answer:

• Animals in which an embryo develops outside the body are called oviparous animals.
• They produce their offspring by laying eggs. In the case of birds, new ones are produced from the eggs.
• The egg shell protects the embryo from the outer environment and the embryo receives its nutrients from the egg yolk.

Question 5.
What is asexual reproduction?
Answer:

• Only a single parent, gets divided into two new offspring, which is known as asexual reproduction.
• It takes place in microorganisms like hydra and amoeba.
• It produces offspring that are identical to the parent.

Question 6.
Name some endangered species in India
Answer:
Snow Leopard, Bengal Tiger, Asiatic Lion, Purple Frog, and Indian Giant Squirrel are some of the endangered animals in India.

Question 7.
How to save endangered species? (any 2 methods)
Answer:
We need to take some measures to protect the endangered species.

1. Hunting and poaching animals should be prohibited.
2. We should hot pollute the environment.

Question 8.
What is Red data book?
Answer:
The Red Data Book is a book maintained for recording rare and endangered species of animals and plants. This book is created to identify and protect the species which are about to extinct.

Question 9.
Expand IUCN.
Answer:
IUCN – International Union for Conservation of Nature.

Question 10.
What is meant by conservation?
Answer:

• Conservation is the protection, preservation, management of wildlife, and natural resources.
• Endangered species are maintained in certain protected areas such as national parks and wildlife sanctuaries.

Question 11.
Name the wild animals that are protected at Kaziranga National park.
Answer:

• Wild animals such as Rhinoceros, Tiger, Elephant, Wild Buffalo, and Swamp Deer are seen here.
• This park also has bears, leopards, and several species of local and migratory birds. This park is famous for one-horned Rhino.

Question 12.
Expand UNESCO.
Answer:
UNESCO (United Nations Educational, Scientific, and Cultural Organisation).

Question 13.
What is the advantage of conservation?
Answer:

• Species can be adapted to their habitat.
• Species can interact with each other.
• The natural habitat of the animals is maintained.
• It is less expensive and easy to manage.

Question 14.
What is meant by cruelty?
Answer:
Cruelty to animals includes capturing, trapping, poisoning of any wild animal collectively.

Question 15.
Name 2 government organizations which work for the welfare of animals.
Answer:

1. Animal Welfare Board of India.
2. National Institute of Animal Welfare

VI. Answer In detail:

Question 1.
Explain the two types of fertilisation.
Answer:
Fertilisation:
Fertilisation in animals takes place in two ways. They are: External fertilization and Internal fertilization
External fertilisation:

• It takes place outside the animal’s body.
• It usually takes place in aquatic environments where both eggs and sperm are released into the water.
  Fertilization in frogs and fish takes place by this method.

Internal fertilisation:

• Fertilization takes place inside the. animal’s body.
• Internal fertilization takes place in animals like cats, dogs, cows, etc.

Question 2.
Explain the formation of the embryo.
Answer:

• The zygote (fertilized egg) further divides repeatedly into groups of cells.
• These cells develop into different tissues and organs constituting a full body.
• This structure is known as an embryo.
• The embryo continues to develop in the uterus and it is developed into body parts such as the head, face, hands, legs, etc.
• Based on the embryo develops outside or inside the body, animals are classified into oviparous and viviparous respectively.

Question 3.
How can we protect endangered species?
Answer:

• Hunting and poaching animals should be prohibited.
• We should not pollute the environment.
• Limiting the usage of plastic and recycling can save endangered animals.
• Pesticides and chemicals which pollute the environment should be avoided.
• Planting native trees will provide food to the animals.
• We should buy eco-friendly products only.

Question 4.
What are the advantages of the Red data book?
Answer:

• It helps to evaluate the population of a particular species.
• The data given in this book can be used at the global level.
• The risk of a species becoming globally extinct can be estimated with the help of this book.
• It provides the necessary guidelines for implementing protective measures.

Tamilnadu State Board New Syllabus Samacheer Kalvi 5th Science Guide Pdf Term 3 Chapter 1 Our Environment Text Book Back Questions and Answers, Notes.

Tamilnadu Samacheer Kalvi 5th Science Solutions Term 3 Chapter 1 Our Environment

Samacheer Kalvi 5th Science Guide Our Environment Text Book Back Questions and Answers

Evaluation

I. Choose the correct answer:

Question 1.
Which of the following produces more milk?
(a) cow
(b) yak
(c) buffalo
(d) goat
Answer:
(a) cow

Question 2.
Poultry farming is rearing and breeding of _______.
(a) chickens
(b) cows
(c) avian species
(d) animal
Answer:
(c) Avian species

Question 3.
_______ is the best fertilizer.

(a) Vermicompost
(b) Fruits
(c) Synthetic Fertiliser
(d) Urea
Answer:
(a) Vermicompost

Question 4.
_______ is more profitable than Agriculture.
(a) Dairy farm
(b) Farming
(c) Cultivation
(d) Poultry
Answer:
(b) Farming

Question 5.
The poultry farm is famous in _______ district in Tamil Nadu state.
(a) Ariyalur
(b) Salem
(c) Namakkal
(d) Thanjavur
Answer:
(c) Namakkal

II. Fill in the blanks:

Question 1.
There are ________ breeds of cattle in India
Answer:
26

Question 2.
The milk of_______ has more nutrients than cow’s milk.
Answer:
Buffalo

Question 3.
_______ contains high amount of fiber.
Answer:
Roughage

Question 4.
Droppings of poultry birds are used as.
Answer:
Manure

Question 5.
Vermicomposting is a method of transforming _______ into a nutrient rich fertilizer.
Answer:
Organic waste

III. Match the following:

Answer:

IV. Say True or False:

Question 1.
Farming is done on a commercial scale.
Answer:
True

Question 2.
Vermicompost caribe used to dean sewage.
Answer:
True

Question 3.
Leguminous plants fix nitrogen in the leaves of the plants.
Answer:
False
Correct Statement:
Leguminous plants fix nitrogen in the roots of the plants.

Question 4.
Namakkal district is famous for dairy farms.
Answer:
False
Correct Statement:
Namakkal district is famous for poultry farms.

Question 5.
Murrah is a buffalo breed.
Answer:
True

V. Answer briefly:

Question 1.
What is farming?
Answer:
Farming is the activity of growing crops and raising livestock.

Question 2.
Mention the types of farming.
Answer:

• Large scale farms
• Middle-sized farms
• small-sized farms

Question 3.
Write a note on a poultry farm.
Answer:

• In poultry farms, avian species are reared and bred for the purpose of egg, meat, or both.
• Fowls, ducks, geese, turkeys, and some varieties of pigeon are the most commonly reared species.
• Proper management of poultry includes methods of hatching, rearing, housing, sanitation, prevention of diseases, and a sound marketing system.

Question 4.
What is farmyard manure?
Answer:

• A common form of animal manure is farmyard manure.
• It contains the feces and urine of different livestock like horses, cattle, pigs, sheep, chickens, turkey, and rabbits.
• It contains nutrients like nitrogen, phosphorus, and potassium. It increases the capacity of soil to hold more water and nutrients.

Question 5.
Define vermicompost.
Answer:

• Vermiculture or Vermicomposting is a method of transforming organic wastes such as waste papers, leaves, pieces of wood, etc., into a nutrient rich fertilizer using earthworms.
• It is a healthy and clean way to eliminate wastes going into our landfills.
• It keeps the environment clean.
• Earthworms eat the organic wastes and excrete it in the form of castings. This is known as vermicompost.

VI.Answer in detail:

Question 1.
What are the uses of animal products?
Answer:

• Milk is used to produce milk products like cheese, butter, curd, etc.
• Cattle dung is used as manure. It is also used as fuel and for the generation of biogas.
• Panchagavya is an ayurvedic medicine used in agriculture to control pests and fungi. It is a mixer of dung and urine of cows, fresh milk, curd, jaggery, and ghee.
• Leather goods are manufactured from cattle hides.

Question 2.
How will you manage a poultry farm?
Answer:
Poultry birds need a clean environment. The following measures should be taken in order to avoid diseases.

• Poultry houses should be clean and disinfected.
• It should have windows for ventilation.
• Light is essential for high egg production.
• Poultry birds need clean and freshwater.
• Timely vaccination is necessary to prevent diseases.

Activities:

Activity 1.
Visit an animal farm in your area and prepare a list of animals domesticated there. Also, find out the products you can get from there.

• Cow – Milk
• Goat – milk
• Buffalo – milk
• Hen – Eggs
• Duck – Eggs

Activity 2.
The below cows are some of the cattle breeds found in Tamil Nadu. With the help of your teacher find out the districts where they are found.

Answer:

Activity 3.
Visit a veterinary hospital in your area and find out the common diseases found among the cattle in your area. Try to know how such diseases can be prevented.
Answer:

Activity 4.

Fill in the blanks using the words given below.
(Oilseeds, Egg, Honey, Food grains, Fish)

Question 1.
Green revolution : _____.
Answer:
Food grains

Question 2.
Blue revolution : _____.
Answer:
Fish

Question 3.
Silver revolution : _____.
Answer:
Eggs

Question 4.
Gold revolution : _____.
Answer:
Honey

Question 5.
Yellow revolution : _____.
Answer:
Oilseeds

Samacheer Kalvi 5th Science Guide Our Environment Additional Questions and Answers

I. Choose the correct answer:

Question 1.
_______ is the cultivation of land and breeding of animals and plants to provide food, fiber, wood & medicinal plants.
(a) Agriculture
(b) Floriculture
(c) Apiculture
Answer:
(a) Agriculture

Question 2.
_______ includes all living things such as plants and animals.
(a) Physical environment
(b) Biological environment
(c) Natural environment
Answer:
(b) Biological environment

Question 3.
_______ is the biggest buffalo milk producer in the world.
(a) China
(b) India
(c) Japan
Answer:
(b) India

Question 4.
________ medicine deals with prevention, diagnosis, and treatment of disease, disorder, and injury for domestic and non-domestic animals.
(a) Dentist
(b) General
(c) Veterinary
Answer:
(c) Veterinary

Question 5.
_______ are affected by internal parasites like roundworm and tapeworm.
(a) Farm animals
(b) Camels
(c) Poultry birds
Answer:
(c) Poultry birds

II. Fill In the blanks:

Question 1.
Leather goods are manufacture from _______.
Answer:
cattle hides

Question 2.
_______ & _______ disease and _______ are some of the common diseases found among cattle.
Answer:
Foot and mouth disease and anthrax

Question 3.
_______ was called as the father of white revolution.
Answer:
Dr. Verghese Kurien

Question 4.
________ is used as a fertilizer for the soil and it improves the properties of the soil.
Answer:
Vermicompost

Question 5.
_______ helps in the suppression of weeds and the prevention of soil erosion.
Answer:
Green manure.

III. Say True or False:

Question 1.
Krishnagiri district of Tamilnadu is the biggest cattle form in Asia.
Answer:
True

Question 2.
Bhadawari and Surti are the buffalo breeds found in India.
Answer:
True

Question 3.
Chicken occupies 90% of the total poultry.
Answer:
True

Question 4.
Whitelegon is the most egg yielding breed in the world.
Answer:
True

Question 5.
Common earthworms are used for vermicomposting.
Answer:
False
Correct statement:
Common earthworms are not used for vermicomposting.

IV. Match the following:

1.

Answer:

1. b
2. e
3. a
4. c
5. d

2.

Answer:

1. d
2. e
3. a
4. c
5. b

V. Answer briefly:

Question 1.
What is dairy farming?
Answer:
Dairy farming is a type of agriculture that focuses on the extraction of milk and preparation of various milk products like cheese, butter, curd, etc.

Question 2.
Name some cattle breeds of India?
Answer:
Gir, Sahiwal, Red Sindhi, Kangayam, and Ongole are some of the cattle breeds found in India.

Question 3.
Name some buffalo breeds of India.
Answer:
Murrah, Jaffrabadi, Bhadawari, and Surti are the buffalo breeds that are found in India.

Question 4.
What food do cattle need?
Answer:

• Cattle need nutritious feed in order to be healthy and to produce high milk yield.
• The cattle feed includes roughage and concentrates.
• The roughage contains a high amount of fiber and it includes fodder, hay, straw, and silage.
• Concentrates include broken grams, cereals, millets, rice polish, cotton seeds, and oil cakes.
• Apart from these feeds, cattle need an adequate amount of freshwater.

Question 5.
How to reduce the spread of diseases in cattle?
Answer:

• Maintaining proper sanitation is necessary to stop the spread of these diseases.
• Timely vaccination can prevent most of the diseases.

Question 6.
Name the poultry farms found in Tamilnadu.
Answer:
In Tamil Nadu famous poultry farms are found in places like Namakkal, Palladam, and Chennai.

Question 7.
What is Liquid Gold?
Answer:
Honey is an exciting source of natural sweet. It is also called Liquid Gold.

Question 8.
How are fowls classified?
Answer:
Fowls are classified on the basis of their utility to man. They are:

• Meat type (broiler),
• Egg type (egg layer)
• Dual type.

Question 9.
What are the minerals present in the egg?
Answer:
Egg contains minerals like calcium, phosphorus, and sodium, and vitamins Like Bi, B2, and D.

Question 10.
Name the different types of manure.
Answer:
Animal manure, green manure, and compost manure are different types of manures.

Question 11.
What is manure?
Answer:

• Manure is an organic matter used as fertilizer.
• It is mostly derived from animal and plant residues.
• It increases the fertility of the soil by adding nutrients such as nitrogen, phosphorus, and potassium.
• It is a natural form of fertilizer and it is cheaper.

Question 12.
What is green manure?
Answer:

• This is manure obtained by decomposition of green leaves, twigs of trees, shrubs, and herbs.
• Leguminous plants like clover are used for this purpose.
• These plants are ploughed in the soil.
• They fix nitrogen in the root of the plants.
• They also help in suppression of weeds and prevention of soil erosion.

Question 13.
What is compost?
Answer:
Compost is obtained by decomposition of organic matter like crop residues, animal wastes, and food wastes by various microorganisms like bacteria and fungi under controlled conditions. These microorganisms break down organic matter into simpler substances.

Question 14.
Name some organic matters which are biologically degradable and used in vermicomposting.
Answer:

• Crop residues like rice straw, rice husk, tea wastes, and tobacco wastes.
• Fruit and vegetable wastes.
• Animal wastes like cattle dung, poultry droppings, and droppings of goat and sheep.

Question 15.
Name some earthworms that are used in vermicompost.
Answer:
Red wigglers, European nightcrawlers, and African nightcrawlers.

VI. Answer in detail:

Question 1.
How are poultry birds useful to us?
Answer:
Egg, meat, and manure are the three main benefits.

• Poultry birds are a good source of nutritive food.
• Eggs laid by them are rich source of protein. These are easily digestible. They contain minerals like calcium, potassium, and iron, vitamins, and a moderate amount of fat.
• Their feathers are used for making pillows and quilts.
• Dropping of the poultry birds is used as manure. It is highly valuable for crops.

Question 2.
Write a note on poultry disease.

• Poultry birds affected by the virus suffer from fever and diarrhea.
• Foul cholera is caused by bacteria.
• Overexposure to wet and cold conditions causes cramps in poultry birds.
• Poultry birds are affected by internal parasites like roundworm and tape worm. They are also affected by external parasites like flees, lice, ticks, etc.

Tamilnadu State Board New Syllabus Samacheer Kalvi 5th Science Guide Pdf Term 2 Chapter 3 Plants Text Book Back Questions and Answers, Notes.

Tamilnadu Samacheer Kalvi 5th Science Solutions Term 2 Chapter 3 Plants

Samacheer Kalvi 5th Science Guide Plants Text Book Back Questions and Answers

Evaluation

I. Choose the correct answer:

Question 1.
Male reproductive organ of the flower is _______.
a) sepal
b) petal
c) androecium
d) gynoecium
Answer:
(c) androecium

Question 2.
Pollination by wind is also known as _______.
a) anemophily
b) hydrophily
c) entamophily
d) ornithophily
Answer:
(a) anemophily

Question 3.
Entamophily is known as _______.
a) pollination by insects
b) pollination by wind
c) pollination by water
d) pollination by animal
Answer:
(a) pollination by insects

Question 4.
Pollination by wind is also known as _______.
a) anemophily
b) hydrophily
c) entamophily
d) ornithophily
Answer:
(a) anemophily

Question 5.
Pollination takes place by wind in _______.
a) grass
b) Vallisneria
c) hydrilla
d) lotus
Answer:
a) grass

II. Fill in the blanks:

Question 1.
Spreading of seeds from one place to another is known as _______.
Answer:
Dispersal of seeds

Question 2.
Autochory is known as _______.
Answer:
Self dispersal method

Question 3.
The seed is a fertilized _______.
Answer:
Ovule

Question 4.
Paddy grow well in soil _______.
Answer:
Clay

Question 5.
The soil which contains a bigger sized particle is _______.
Answer:
Sandy soil

III. Match the following:

Answer:

IV. Answer briefly:

Question 1.
Define pollination.
Answer:
The transfer of pollen grains from the anther to stigma of a flower is called pollination.

Question 2.
What is germination of seed?
Answer:
The seed is a fertilized ovule. It consists of an embryo, food materials which are protected by the seed coat. During favourable conditions, the seed germinates and gives rise to a new seedling.

Question 3.
How soil is formed?
Answer:
Soil is formed by the breaking of rocks by the action of wind, water and climate. The mixture of rock particles and humus is called the soil.

Question 4.
What is known as vermicompost?
Answer:
The process of decomposing bio-degradable wastes by earthworms is known as vermicompost.

Question 5.
How the seeds are spread by water?
Answer:
Fruits which are dispersed by water have outer coats modified to enable them to float. The mesocarp of coconut is fibrous and is easily carried away by water. They reach different places and grow into a new plant.
E.g. Lotus, Coconut.

V. Answer in detail:

Question 1.
Write a note on parts of Plants.
Answer:
Parts of a plant

• A plant is made up of many different parts. The three main parts are the roots, the
  leaves, and the stem.
• Each part has a set of jobs to do to keep the plant healthy.
• The roots absorb water and minerals from the soil and anchor the plant in the ground. The stem supports the plant above ground and carries the water and minerals to the leaves.
• The leaves collect energy from the Sun and make food for the plant, using an amazing process called photosynthesis.

Question 2.
Explain the methods of pollination.
Answer:

• Pollination by Wind (Anemophily): The flowers pollinated by wind are mostly small in size and do not have any attractive colour, smell and nectar. The pollen grains are non-sticky, dry, light and powdery. Hence, they are easily carried by the wind. E.g. Grass, Maize, Pine.
• Pollination by Water (Hydrophily): The flowers of water plants are not colourful and they have no nectar. Pollen grains of these plants have mucilaginous covering to protect them from getting wet. They float in water and reach the other plant. E.g. Vallisneria, Hydrilla, Zosteria.
• Pollination by Insects (Entamophily): This is the most common type of pollination in plants like sunflower, ladies finger, brinjal and pumpkin. Some flowers are large in size and they have a sweet smell. Some of these flowers produce nectar. They attract insects like butterflies and honey bees.

Question 3.
Draw the picture of a flower and label the parts.
Answer:

Activity:
Question 1:
Classify the plants based on the pollination methods.
Vallisneria, Hydrilla, Sunflower, Grass, Brinjal, Maize, Pumpkin.
Answer:

Samacheer Kalvi 5th Science Guide Plants Additional Questions and Answers

I. Choose the correct answer:

Question 1.
Kurinji or Neelakurinji (Strobilanthes kunthianu) blossoms once in _____ years.
(a) 12
(b) 13
(c) 14
(d) 15
Answer:
(a) 12

Question 2.
_______ is the outer part of the flower.
a) Sepal
(b) Petal
(c) Androecium
(d) Gynoecium
Answer:
(a) Sepal

Question 3.
Dicotyledons have seeds with _____ cotyledons.
(a) one
(b) two
(c) three
(d) four
Answer:
(b) two

Question 4.
The example for Self Dispersal Method is ________.
(a) Ladies finger
(b) Coconut
(c) Lotus
(d) Tomato
Answer:
(a) Ladies finger

II. Fill in the blanks:

Question 1.
Fruit bats, hummingbirds and ants may also act as _____ agents.
Answer:
Pollinating

Question 2.
The zygote develops into an _______.
Answer:
Embryo

Question 3.
_______ is used as food and also for medicinal purposes.
Answer:
Honey

Question 4.
The _______ of coconut is fibrous and is easily carried away by water.
Answer:
Mesocarp

Question 5.
The purplish-blue flowers of blossoms once in 12 years.
Answer:
Neelakurinji

III. Match the following:

I.

Answer:

II.

Answer:

IV. Answer briefly:

Question 1.
what are the kinds of reproduction?
Answer:
There are two kinds of reproduction that take place in plants. They are sexual reproduction and asexual reproduction. In asexual reproduction, new plants are produced from roots, leaves, stems and buds. In sexual reproduction, new plants are obtained from seeds.

Question 2.
Differentiate between unisexual and bisexual flowers.
Answer:

• The flowers which contain either androecium or gynoecium are called unisexual tlowers.
  E.g. Corn, Papaya, Cucumber.
• The flowers which contain both androecium and gynoecium are called bisexual flowers.
  E.g. Mustard, Rose.

Question 3.
Tabulate the names of the pigment present in petals.
Answer:

Question 4.
What is called fertilization?
Answer:
The process of fusion of male (pollen grains) and female (stigma) gametes is called fertilization. The cell which results after fusion of the gametes is called a zygote. The zygote develops into an embryo.

Question 5.
Label the parts.

Answer:

Question 6.
Label the parts.

Answer:

Question 7.
Draw a life cycle of flowering plants.
Answer:

Question 8.
How the seeds are spread by Wind?
Answer:
The seeds which are smaller, lighter and tiny, float in air over a long distance. Some of them proceed with hairs and membranous wing-like structures and so they are carried away easily.
E.g. Cottonseed, Drumstick.

Question 9.
Write a short note on Zoochory.
Answer:
Some fruits are provided with hooks, spines, bristles, stiff hair etc, on their outer coat. These fruits stick on the furry coats or skins of some animals and are carried from one place to another.
E.g. Xanthium, Achyranthus.

Question 10.
Who are the friends of Farmer?
Answer:
Earthworm, honeybee and dragonfly.

V. Answer in detail:

Question 1.
Write a note on parts of Flower.
Answer:
Flower is the reproductive part of a plant. It is a modified shoot. Flowers have four important parts. They are:

• Sepal: It is the outer part of the flower. Usually, it is small and green in colour. It protects the bud in the early stage.
• Petal: It is often colourful and it attracts insects.
• Androecium: It is the male reproductive part of the flower. It is composed of stamens. Each stamen consists of a stalk called filament and a small bag like structure called anther at the tip. The pollen grains are produced in the anther within the pollen sacs.
• Gynoecium: It is a female part of the flower. It has three parts. They are ovary, style and stigma. The ovary contains the ovules.

Question 2.
Draw a diagram of a leaf and label the parts.
Answer:

Question 3.
Explain the types of Soils.
Answer:

• Sandy soil: It contains a greater proportion of big particles. They cannot fit closely together. Water can drain quickly through the spaces between the sand particles. So, sandy soils tend to be light, well aerated and dry.
• Clay soil: It contains a greater proportion of fine particles, packed tightly together. leaving little space for air. It can retain a lot of water in the tiny gaps between the particles. Plants like paddy grow well in this soil.
• Loamy soil: It Contains large and fine particles in almost same proportion. The best topsoil for growing plants is loam. It is a mixture of sand, clay and another type of soil particle known as silt. Silt occurs as a deposit in river beds. It has right water holding capacity for the growth of plants. Clay and loamy soil are suitable for growing wheat, gram and paddy.

Tamilnadu State Board New Syllabus Samacheer Kalvi 5th Science Guide Pdf Term 2 Chapter 2 Water Text Book Back Questions and Answers, Notes.

Tamilnadu Samacheer Kalvi 5th Science Solutions Term 2 Chapter 2 Water

Samacheer Kalvi 5th Science Guide Water Text Book Back Questions and Answers

Evaluation

I. Choose the correct answers:

Question 1.
Which of the following microorganisms causes waterborne diseases?
a) Bacteria
b) Virus
c) Protozoa
d) All
Answer:
(d) All

Question 2.
Water is present in huge quantities as vapor and clouds in the
a) sky
b) earth
c) atmosphere
d) rain
Answer:
(c) Atmosphere

Question 3.
________ water is free from suspended impurities.
a) Sea
b) Well
c) River
d) Underground
Answer:
(d) Underground

Question 4.
________ of water is in oceans and seas.
a) 97%
b) 87%
c) 47%
d) 77%
Answer:
(a) 97%

Question 5.
________ is an artificial process of converting seawater into freshwater.
a) Distillation
b) Decantation
c) Reverse Osmosis
d) Desalination
Answer:
(d) Desalination

II. Fill in the blanks:

Question 1.
The accumulated underground water comes out in the form of ________.
Answer:
A Spring

Question 2.
The process of changing water into water vapor by the heat of the Sun is called ________.
Answer:
Evaporation

Question 3.
Rainwater forms streams and ________ which join together to form rivers.
Answer:
springs

Question 4.
The process of collecting and storing rainwater is called ________.
Answer:
Rainwater harvesting

Question 5.
Cholera is caused by ________.
Answer:
Bacteria (Vibrio Cholerae)

III. Match the following:

Answer:

IV. Answer briefly:

Question 1.
Write down the sources of water.
Answer:

• River water and lake water
• Seawater
• Well water
• Springwater
• Underground water

Question 2.
What is desalination?
Answer:
Desalination is an artificial process of converting saline water (seawater) into freshwater.

Question 3.
What are the processes involved in the water cycle?
Answer:
Water cycle consists of the following four processes:

• Evaporation
• Condensation
• Precipitation
• Flowing back to oceans.

Question 4.
What are reservoirs?
Answer:
A reservoir is an artificial/man-made lake, where water is stored. Most reservoirs are formed by constructing dams across rivers. A reservoir can also be formed from a natural lake.

Question 5.
How can we prevent dengue fever?
Answer:
We can prevent dengue fever by the following steps:

• Spray the house with anti-mosquito spray.
• Try to wear clothes that cover skin areas.
• Close the doors and windows during early morning and evening.
• Do not leave stagnant water lying anywhere in and around the house.

V. Answer in detail:

Question 1.
Write the advantages of rainwater harvesting.
Answer:
Advantages:

• Rainwater harvesting can reduce flooding in the cities.
• Rainwater harvesting can reduce top soil loss.
• Groundwater level can be increased.
• Groundwater can be conserved.
• It can improve plant growth.

Question 2.
How can we prevent waterborne diseases?
Answer:

• Good personal hygiene should be practiced and basic sanitation should be improved.
• Chlorinated and boiled water should be used for drinking.
• Drink boiled or pasteurized milk.
• Dispose of infectious wastes properly.

Samacheer Kalvi 5th Science Guide Water Additional Questions and Answers

I. Choose the correct answer:

Question 1.
The origin of river is ______.
(a) plains
(b) mountains
(c) valley
(d) ocean
Answer:
(b) Mountains

Question 2.
______ is called saline water.
(a) Seawater
(b) River water
(c) Well water
(d) Underground water
Answer:
(a) Seawater

Question 3.
______ of the world population does not get safe drinking water.
(a) 24%
(b) 25%
(c) 26%
(d) 27%
Answer:
(b) 25%

Question 4.
_________ million people die worldwide every year due to diarrhoeal diseases.
(a) 1
(b) 2
(c) 3
(d) 4
Answer:
(c) 3

II. Fill in the blanks:

Question 1.
_________ of the total freshwater is frozen as ice caps and glaciers.
Answer:
68.7%

Question 2.
Agriculture consumes around ______ of the available freshwater.
Answer:
70 %

Question 3.
March 22 ispbserved as _______.
Answer:
World Water Day

Question 4.
Contamination of water bodies by human activities is called _______ pollution.
Answer:
water

Question 5.
_______ mosquitoes also transmit chikungunya and yellow fever.
Answer:
Aedes

III. Match the following:

Answer:

IV. Answer briefly:

Question 1.
Why is underground water free from suspended Impurities?
Answer:
Underground water is free from suspended impurities because it is filtered by nature, as it passes through several layers of the soil.

Question 2.
What are balls of ice?
Answer:
In freezing conditions, water falling from the sky becomes snow or hail. Hailstones are balls of ice.

Question 3.
Define – Freshwater.
Answer:
Water which is obtained naturally from ice sheets, ice caps, glaciers, icebergs, ponds, lakes, rivers, streams, and underground are called freshwater.

Question 4.
Write the advantages of Wastewater treatment.
Answer:

• Waste water treatment ensures that the environment is clean.
• There is no water pollution.
• It prevents waterborne diseases.
• It ensures that there is adequate water for irrigation.

Question 5.
What are the major sources of Water pollution?
Answer:
The major sources of water pollution are industrial waste, sewage, domestic waste, chemical fertilizers and insecticides, synthetic detergents, and oil spills.

Question 6.
Name the Causative Agents and write the Symptoms for Dengue Fever and Sine Flu.
Answer:

• Dengue fever:- Virus (Flavi Virus) – High fever, Severe headache, Muscle and joint pain, Vomiting with blood, and Stomach pain.
• Swine Flue:- Virus (Influenza) – Infection in respiratory tracks, Indigestion, Nasal secretions.

V. Answer In detail:

Question 1.

Write a short note on Farm Ponds.
Answer:

• A farm pond is a structure dugout on the Earth. It is usually square or rectangular
  in shape.
• Rainwater is stored in it for irrigation purposes. It is surrounded by a small bund, which
  prevents erosion on the banks of the pond.
• The size and depth of the pond depending on the type of the soil, water requirements of the
  farmer, its uses, and the cost of excavation.
• Water is conveyed to the fields manually, by pumping, or by both.

Question 2.
write the names of Causative Agents and the symptoms for waterborne diseases.
Answer:

Question 3.
How is Dengue fever spread? What are the symptoms?
Answer:
Dengue is a viral disease spread by Aedes female mosquitoes that bite during day time.
They breed in stagnant water found in containers and old tyres.
Symptoms:

• Symptoms may include high fever, severe headache, muscle, and joint pain, and a characteristic skin rash.
• Symptoms of dengue fever typically begin three to fourteen days after infection.
• Deficiency of platelets in blood.
• Intense stomach pain.
• Regular vomiting with blood.

Tamilnadu State Board New Syllabus Samacheer Kalvi 5th Science Guide Pdf Term 2 Chapter 1 Food Text Book Back Questions and Answers, Notes.

Tamilnadu Samacheer Kalvi 5th Science Solutions Term 2 Chapter 1 Food

Samacheer Kalvi 5th Science Guide Food Text Book Back Questions and Answers

Evaluation

I. Choose the correct answer:

Question 1.
The biotic factor which spoils the food item is
a) drying
b) temperature
c) humidity
d) bacteria
Ans:
(d) bacteria

Question 2.
Grains are preserved by
a) drying
b) freezing
c) adding sugar
d) adding salt
Answer:
(a) drying

Question 3.
Anaemia is a disease which occurs due to lack of
a) Vitamin-A
b) Vitamin-B
c) Iron
d) Vìtamin-D
Answer:
(c) Iron

Question 4.
Storage of excess fat in the body is known as
a) obesity
b) headache
c) fever
d) stomach pain
Answer:
(a) obesity

Question 5.
Carbohydrates are rich in
a) ghee
b) fruits
c) rice
d) oil
Answer:
(c) rice

II. Fill in the blanks:

Question 1.
Night blindness is caused by the lack of_________.
Answer:
Vitamin A

Question 2.
Marasmus is a __________ deficiency disease.
Answer:
protein

Question 3.
Bad smell from the food item is due to _________.
Answer:
Evaporation

Question 4.
Humidity in air is one of the _________ factor, which spoils food.
Answer:
Decompose

Question 5.
Using low-quality gas tubes in the gas stove may lead to _________ leakage.
Answer:
Gas

III. Match the following:

Answer:

IV. Say True or False:

Question 1.
Vinegar is added as a preservative for pickles.
Answer:
True

Question 2.
Irradiation affects the taste of food materials.
Answer:
False

Question 3.
In case of gas leakage, we can continue to use electrical appliances.
Answer:
False

Question 4.
Deficiency due to iodine is called beriberi.
Answer:
False

Question 5.
Growing children need more proteins in their food.
Answer:
True

V. Answer briefly:

Question 1.
Define deficiency disease.
Answer:
Deficiency in one or more of the nutrients causes various diseases. These are called deficiency diseases.

Question 2.
What is known as balanced diet?

Answer:
The food we normally eat in a day is our diet. For growth and maintenance of good health, our diet should have all the nutrients that our body needs, in right quantities. Such a diet is called a balanced diet.

Question 3.
How can we prevent obesity?
Answer:

1. Avoid fast foods, fried items and meat with more fat.
2. Eat fruits and vegetables, legumes, whole grains and nuts.
3. Do regular physical exercises.
4. Don’t play games in computer and mobile phones.
5. Have proper sleep time.

Question 4.
What should we do in case of minor burns?
Answer:
In case of minor burns, the burnt area should be held under cool running water for some time and proper medical treatment should be given.

Question 5.
Define spoilage of food.
Answer:
The change in the normal state of the food is called spoilage of food.

Question 6.

What is the purpose of food preservation?
Answer:

1. To retain the colour, taste and nutritive value of the food.
2. To make food available throughout the year.
3. To prevent the growth of micro-organisms like bacteria and fungi in the food items.
4. To reduce the wastage of food materials.
5. Preserving food not only protects our health but also makes food available to the people who need it.

VI. Answer in detail:

Question 1.
Write about food preservation methods.
Answer:
Drying: It is the removal of water content from the food by drying it in the sunlight.
E.g. Grains.
Addition of salt: When salt is added to food, it removes the water from the food.
E.g. Fish, Pickles.
Addition of sugar: When sugar is added to food, it dissolves in the water content of the food and preserves the food items from spoilage.
E.g. Jam, Fruit juices.
Freezing: The microbial growth and the enzyme activity on the frozen food items can be prevented by this method. E.g. Fruits, Vegetables.
Boiling: It kills the micro-organisms present in the food materials.
E.g. Milk, Water.
Canning and bottling: In this method, food is packed in airtight cans so that germs do not grow on them.
E.g. Milk powder.
Addition of chemical preservatives: Chemical preservatives are added to stop the growth of micro-organisms in certain food materials.
E.g. Sodium benzoate is added with fruits, Sulphur dioxide is added with dry fruits, Vinegar is added with pickles.

Question 2.
Explain the different types of food.
Answer:
Different types of food

1. Grains
2. Vegetables
3. Fruits
4. Milk
5. Meat, Fish, Egg
6. Fat/Oil, Salt and Sugar
   Some major food items are given in the table below.

Question 3.
Write about kitchen safety.
Answer:
Kitchen is an important place in our homes. We prepare our food in the kitchen. We use gas cylinders for cooking. Some of us may use electric stoves. The equipment and the environment in the kitchen may be little dangerous. So we need to be cautious and careful.
The following table gives what should we do and what we shouldn’t do while handling gas cylinders.

VII. Higher order thinking questions:

Question 1.
Ram put water over a burning wood in the kitchen. The fire is put off. How the water was able to put out the fire?
Answer:
When Ram put water on fire it does two things. It displaces the free oxygen molecules (which have two atoms of oxygen) so that it is not available to participate in the burning process and it turns to steam, carrying heat away from the fire, cooling it to the point where it can no longer burn.

Activities:

Activity 1.
Classify the following into perishable and non-perishable food items. Salt, Sugar, Apple, Corn, Orange, Wheat, Pulses, Tomato, Papaya, Rice, Cucumber.
Answer:

Activity 2.
Look at the fruits and vegetables in your house. Is there any spoiled one? Find out the reason for that.
Answer:

Activity 3.
Find your B.M.I

Answer:
Activity to be done by students.

Activity 4.
Find out the common disease prevalent in your area. Find out the reason for them an discuss with your teacher how to get remedy for them.
Answer:

Samacheer Kalvi 5th Science Guide Food Additional Questions and Answers

I.Choose the correct Answer:

Question 1.
Microorganisms present in spoiled foods may cause _________ diseases.
(a) foodborne
(b) Diabetes
(c) Colour blindness
(d) Cholera
Answer:
(a) foodborne

Question 2.
_______ disease is spread from one person to another.
(a) Heart disease
(b) Common cold
(c) Marasmus
(d) Diabetes
Answer:
(b) Common cold

Question 3.
Kwashiorkor is a _______ deficiency disease.
(a) Vitamin – A
(b) Iodine
(c) protein
(d) Iron
Answer:
(c) protein

Question 4.
Beri beri is a disease which occurs due to lack of _______.
(a) Vitamin-A
(b) Vitamin -B
(c) Iron
(d) Vitamin-D
Answer:
(b) Vitamin-B

Question 5.
Type of Fire Extinguisher for the fire caused by Liquid, Gaseous fuels is _________.
(a) Carbon dioxide
(c) Water
(b) Oxygen
(d) Dry chemical
Answer:
(a) Carbon dioxide

II. Fill in the blanks:

Question 1.
BMI=_____
Answer:
Weight In kg / Height In m2

Question 2.
Food is exposed to _________ rays or _________ rays.
Answer:
Gamma, ultra violet

Question 3.
Regular ________ can reduce obesity and overweight.
Answer:
physical activity

Question 4.
Infectious diseases are caused by _______.
Answer:
Micro-organisms

Question 5.
_______ are highly nutritive food materials.
Answer:
Spinach and Ponnanganni keerai.

III. Say True or False:

Question 1.
Spoiled foods are suitable to eat.
Answer:
False

Question 2.
People with BMIs between 18.5 and 25 have less chance of developing diseases like cancer.
Answer:
True

Question 3.
Do not operate electrical appliances with wet hands.
Answer:
True

Question 4.
Keep the inflammable materials near the gas stoves.
Answer:
False

Question 5.
Use proper fire extinguishers to put out the fire.
Answer:
True

IV. Match the following:

Question 1.

Answer:

1. e
2. c
3. d
4. b
5. a

Question 2.

Answer:

1. b
2. a
3. e
4. c
5. d

V. Answer briefly:

Question 1.
Which food items are called Perishable foods?
Answer:
Food items like fruits, vegetables, milk and meat will be fresh for a very short time. These are called perishable foods.

Question 2.
What is meant by the preservation of food?
Answer:
The process of keeping the food materials for a long time without getting spoiled is called preservation of food.

Question 3
What is Irradiation?
Answer:
Irradiation is a modern method by which, food is exposed to gamma rays or ultraviolet rays to kill the bacteria and the mould.

Question 4.
What are the sources to be removed to avoid fire?
Answer:

1. Cut off the fuel.
2. Cut off the air supply.
3. Lower the temperature.

Question 5.
What is the Difference between Marasmus and Kwashiorkor?
Answer:
Marasmus:

1. Marasmus is a protein deficiency disease.
2. In marasmus, the child loses weight and it will appear as though bones are covered by skin.

Kwashiorkor:
In Kwashiorkor, the child develops an enlarged belly with swollen face and feet.

VI. Answer in detail:

Question 1.
What are the factors for food Spoilage?
Answer:
Food can be spoiled by factors like air and oxygen, moisture, light, micro-organisms, and temperature.
Air and Oxygen: When oxygen reacts with food contents, it produces changes in the colour and flavour of the food.
Moisture: Moisture keeps the food fresh. When the moisture is gone vegetables and fruits shrink. Due to evaporation, moisture loss occurs in foods like meat, fish and cheese. Enzymes: Enzymes break down the tissues and components of the food in different ways like oxidation, browning and ripening. So the food items decay.
Micro-organisms: Micro-organisms such as fungi, yeast and bacteria can grow well in low temperatures. They multiply in food and spoil them.
Light: Light produces colour changes and also vitamin loss.
Temperature: Sometimes the rise in temperature causes food spoilage.

Question 2.
Explain the different types of diseases.
Answer:
There are four main types of diseases. They are:

• Infectious diseases
• Hereditary diseases
• Physiological diseases
• Deficiency diseases.

a. Infectious diseases: Infectious diseases are caused by micro-organisms which invade our body and multiply inside them. These diseases are spread from one person to another. E.g. Common cold.
b. Hereditary diseases: Hereditary diseases are spread by abnormalities in the gene. These diseases are passed from parents to children. E.g. Heart disease.
c. Physiological diseases: Diseases which are caused due to malfunction of the body organs are called physiological diseases. E.g. Asthma.
d. Deficiency diseases: A diet which contains all essential nutrients in correct proportion is indispensable for maintaining good health. Deficiency in one or more of the nutrients causes various diseases. These are called deficiency diseases.

Question 3.
Write any 6 tips for fire protection and prevention.
Answer:

• Do not keep the inflammable materials like kerosene etc, near the gas stoves.
• In case of person’s clothes catching fire, cover the person with a thick blanket or carpet.
• If kerosene or oil catches fire, use sand to put out the fire.
• If solid materials like wood catch fire, use water to put out the fire.
• If an electrical appliance catches fire, unplug the appliances and disconnect the electricity.
• Use proper fire extinguishers to put out the fire.

Tamilnadu State Board New Syllabus Samacheer Kalvi 5th Science Guide Pdf Term 1 Chapter 4 Science In Everyday Life Text Book Back Questions and Answers, Notes.

Tamilnadu Samacheer Kalvi 5th Science Solutions Term 1 Chapter 4 Science In Everyday Life

Samacheer Kalvi 5th Science Guide Science in Everyday Life Text Book Back Questions and Answers

Evaluation

I. Choose the correct Answer:

Question 1.
Blue appearance of the sky is due to ________ of light.
a) reflection
b) refraction
c) interference
d)scattering
Answer:
d) scattering

Question 2.
Who is known as Missile Man of India?
a) Sir CM. Raman
b) Dr. A.P.J. Abdul Kalam
c) Dr. M.S. Swaminathan
d)Ramanujan
Answer:
b) Dr. A.P.J. Abdul Kalam

Question 3.
An example for reversible change is ________.
a) melting of ice
b) burst of balloon
c) burning paper
d) change of milk into curd
Answer:
a) Melting of ice

Question 4.
Chemical reactions are example for ________ .
a) reversible change
b) irreversible change
c) both of them
d) none of them
Answer:
b) Irreversible change

Question 5.
Which of the following is not an organic waste?
a) Flowers
b) Vegetables
c) Fruits
d) Battery
Answer:
d) Battery

II. Fill in the blanks:
Question 1.
The book Wings of fire was written by _______.
Answer:
Dr. A.P.J. Abdul Kalam

Question 2.
A stretched rubber band comes back to normal shape. It is an example for _______.
Answer:
Reversible changes

Question 3.
Most of the physical changes are _______ changes.
Answer:
Reversible changes

Question 4.
Newspaper is a _______ waste.
Answer:
Recyclable waste

Question 5.
Wastes from house and apartments are called _______ waste.
Answer:
Household

III. Match the following:

Answer:

1. e
2. d
3. a
4. b
5. c

IV.Circle the odd one:

Question 1.
a) Melting
b) Freezing
c) Boiling
d) Cooking
Answer:
d) Cooking

Question 2.
a) Boiling
b) Burning
c) Cooking
d) Rusting of Iron
Answer:
a) Boiling

Question 3.
a) Vegetables
b) Flowers
c) Fruits
d) Chemicals
Answer:
d) Chemicals

Question 4.
a) Paper
b) Glass
c) Metals
d) Paints
Answer:
a) Paper

V. Answer in brief:

Question 1.
Sky appears blue in colour. Why?
Answer:
The sunlight is scattered by the gases and particles present in the air. The white light we see is composed of different colours such as violet, indigo, blue, green, yellow, orange and red (VIBGYOR). Among. these colours, blue is scattered more. Because of this reason, sky appears blue most of the time.

Question 2.
What is reversible change?
Answer:
Changes which can be reversed are called reversible change.
Eg: melting of ice.

Question 3.
Differentiate reversible and irreversible changes.
Answer:

Question 4.
What are the different types of waste?
Answer:
Wastes are of two types, they are;

• Household wastes.
• Wastes from school.

Question 5.
Write a note on e-waste.
Answer:
e – wastes are electronic waste of computer parts, electronic materials, cell phone parts, CFL bulb. Every year 40 million tons of electronic waste is generated world wide, e-waste comprises 70% of our overall toxic waste. e-waste contains hundreds of substances, of which many are toxic.

Question 6.
Name the scientists from Tamil Nadu.
Answer:

• Dr M.S. Swaminathan.
• Venkataraman Radhakrishnan.
• Sir. C.V. Raman.
• Srinivasa Ramanujan.
• Dr. A.P.J. Adbul Kalam.

VI. Answer in detail:

Question 1.
Write about different household wastes.
Answer:
Different types of household wastes are :
a) Organic waste: Kitchen wastes, vegetables, flowers, leaves, fruits.
b) Toxic wastes: Old medicines, paints, chemicals, bulbs, spray cans, fertilizers, pesticides, containers, batteries, shoe polish.
c) Recyclable wastes: Paper, glass, metals, plastics.
d) Solid wastes: Cloths soiled with blood and other body fluids.
e) e-wastes: Computer parts, electronic materials, cell phone parts, CFL bulbs.

Question 2.
Explain the need for waste disposal.
Answer:
Waste management is needed for the following reasons.

a) To control pollution: Various pollution like water pollution, air pollution and soil pollution can be avoided.

b) To conserve natural resources: Waste disposal is important for the conservation of our environmental resources like forest, minerals and water.

c) To control spread of diseases: Spread of infectious diseases can be controlled.

d) Recycle for further use: Wastes can be recycled to get products for further use.

Question 3.
How can you reduce waste in your school environment?
Answer:
The following practices will helpful to reduce wastes in school environment.

• Use reusable and recyclable bags and containers.
• Avoid one-time use items and use items which can be used permanently.
• Segregate wastes into bio-degradable and non-biodegradable items and hand over them to the municipal and corporation people who collect them.
• Do not throw away your wastes everywhere, put them in dustbins and dispose of them properly.
• Don’t waste food. Waste food in schools can be collected and used to feed cattle.
• Organic wastes can be converted into manures.

Samacheer Kalvi 5th Science Guide Science In Everyday Life Additional Questions and Answers

I. Choose the Correct Answer:

Question 1.
Which among the following is the toxic waste?
a) Vegetable waste
b) Old medicines
c) Kitchen waste
d) Leaves waste
Answer:
b) Old medicines

Question 2.
Which is reversible change?
a) Raw egg to boiled egg
b) Ice cube to water
c) Burning paper
d) All the above
Answer:
b) Ice cube to water

Question 3.
Who is referred as the people’s president?
a) Sir C.V.Raman
b) Ram Nath Kovoind
c) A.P.J.Abdul Kalam
d) None of the above
Answer:
c) A.P.J.Abdul Kalam

Question 4.
Sir C.V.Raman won the Nobel prize for his work in _______.
a) Green revolution
b) Composite numbers
c) Structure of ribosome
d) Scattering of light
Answer:
d) Scattering of light

Question 5.
National Science Day is celebrated on _______.
a) 27th February
b) 28th February
c) 28th March
d) 27th March
Answer:
b) 28th February

II. Fill in the blanks:

Question 1.
Water changes into ice on cooling is an example of ________.
Answer:
Reversible change

Question 2.
change is the _______ of a substance from one form to another.
Answer:
Transition

Question 3.
A.P.J Abdul Kalam was an _______.
Answer:
Aeronautical Scientist.

Question 4.
Changes which cannot be reversed are called _______.
Answer:
Irreversible changes

Question 5.
Most of the physical changes are _______ change.
Answer:
Reversible

Question 6.
Dissolving sugar in water is a _______ change.
Answer:
Reversible

Question 7.
Paper, LPG, CNG petrol etc, are _____ substances.
Answer:
Inflammable

Question 8.
Water on _______ changes to ice and on _______ comes back to water.
Answer:
cooling, heating

III. Pick out the odd one out:

Question 1.
a) Kitchen waste
b) Vegetables
c)Flowers
d)Fertilizers
Answer:
d) Fertilizers

Question 2.
a)Piece of bread
b)Polythene bag
c) Broken glass
d) Blades.
Answer:
a) Piece of bread

Question 3.
a) Reduce
b) Reuse
c) Recycle
d) Disposal
Answer:
d) Disposal

Question 4.
a) Milk to curd
b) Raw egg to boiled egg
c) Ice cube to water
d) Grain to flour.
Answer:
c) Ice cube to water

IV. Match the following:

Answer:

1. b
2. a
3. d
4. c

V. Say True or False:

Question 1.
Evaporation of water is a reversible change.
Answer:
True

Question 2.
Burning of the paper is an irreversible change.
Answer:
True

Question 3.
Rusting of iron is a reversible change.
Answer:
False

Question 4.
Sky appears blue at sunrise.
Answer:
False

Question 5.
Sunlight is scattered by the gases.
Answer:
True

Question 6.
Blue has more scattered capacity.
Answer:
True

VI. Answer in brief:

Question 1.
Why does the sky appear blue?
Answer:
Sunlight is scattered by the gases and particles present in the air. The white light we see is composed of different colours such as violet, indigo, blue, green, yellow, orange and red (VIBGYOR). Among these colours, blue is scattered more. Because of this reason, sky appears blue most of the time.

Question 2.
Name the two types of changes.
Answer:
Changes can be classified as

1. Reversible
2. Irreversible changes.

Question 3.
What are reversible changes?
Answer:
Changes which can be reversed are called reversible changes.

Question 4.
What are irreversible changes?
Answer:
Irreversible changes are also known as permanent changes. Processes like heating, burning, mixing and powdering cause permanent changes.

Question 5.
What is meant by waste?
Answer:
Waste is any substance which is discarded after primary use. It is worthless, defective and of no use. They are unwanted and undesirable materials.

Question 6.
What are the 3R’s used to save the environment?
Answer:
The 3R’s are used to save the environment are Reduce, Recycle, and Reuse.

VII. Answer in detail:

Question 1.
Write the differences between reversible and irreversible changes.
Answer:
Differences between reversible and irreversible changes are:

Question 2.
What is household waste and write its classification?
Answer:
Wastes from home are known as household waste. Solid wastes disposed of home and apartments comprise of garbage and rubbish (bottles, cans, clothing, composts, disposable items, food packings, newspapers, magazines, and trimmings). We can classify the household wastes as below.

Organic wastes: Kitchen wastes, Vegetables, Flowers, Leaves, Fruits.

Toxic wastes: Old medicines, Paints, Chemicals, Bulbs, Spray cans, Fertilizers, Pesticide containers, Batteries, Shoe polish.

Recyclable wastes: Paper, &lass, Metals, Plastics.

Solid wastes: Cloths soiled with blood and other body fluids.

e-wastes: Computer parts, Electronic materials, Cell phone parts, CFL bulbs.

Question 3.
How can we protect our environment?
Answer:

• Use reusable and recyclable bags and containers.

• Avoid one-time use items and use items which can be used permanently.
• Segregate wastes into bio-degradable and non-biodegradable items and hand over them to the municipal and corporation people who collect them.
• Do not throw away your wastes everywhere. Put them in dustbins and dispose of them properly.
• Don’t waste food. Waste food in schools can be collected and used to feed cattle.
• Organic wastes can be converted into manures.