28 Apr 2022

Samacheer kalvi 7th Science Term 3 Unit 5 Answers

Samacheer Kalvi 7th Science Term 3 Unit 5 Book Back Questions and Answers:

Samacheer Kalvi 7th Standard Science Book Back 1 Mark and 2 Mark Question & Answers uploaded online and available PDF for free download. Class 7th New Syllabus Science Term III book back question & answer solutions guide available below for English Medium. Class Seventh Std Science English Medium Term 3 Unit 5 Animals In Daily Life book back answers are given below. Students looking for class 7th Term III Unit 5 Questions and Answers can check below.

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Samacheer Kalvi 7th Science Book Back Chapter 5 Term 3 Solutions Guide PDF:

TN State Board Class 7th Science Subject Term 3 Unit 5 one mark and two mark solutions guide PDF available below.

Science – Term 3

Unit 5 – Animals In Daily Life

I. Choose the correct answers :

1. __________ is the daily essential product that is obtained from cattle.
(a) Egg
(b) Milk
(c) Both of them
(d) None of them
(b) Milk

2. Eggs are rich in __________
(a) Protein
(b) Carbohydrate
(c) Fat
(d) Acid
(a) Protein

3. Which parts of the goat and sheep is used for manufacturing clothes?
(a) Leg
(b) Hand
(c) Hair
(d) Head
(c) Hair

4. The cultivation and production of silk is known as __________
(a) Horticulture
(b) Floriculture
(c) Agriculture
(d) Sericulture
(d) Sericulture

5. Sorter’s Disease is otherwise known as __________
(a) Asthma
(b) Anthrax
(c) Typhoid
(d) Cholera
(b) Anthrax

II. Fill in the blanks:

  1. Proteins and __________ are rich in milk.
  2. __________ is extracted from bee hives.
  3. Anthrax is caused by __________
  4. __________ is the strongest natural fiber.
  5. Peace silk was produced in the year __________


  1. Calcium
  2. Honey
  3. Bacillus anthracis
  4. Silk
  5. 1992

III. True or False – If False, give the correct answer :

1. Animals are the greatest gift of nature.

2. Horse hair is used as bristles in small painting brushes.

3. Wool is the fibre derived from the silkworm.
Correct statement: Sill is the fibre derived from the silkworm.

4. Ahimsa silk is otherwise known as Mulberry silk.
Correct statement: Ahimsa silk is otherwise known as peace silk.

5. Penicillin is the best medicine for curing Anthrax.

IV. Match the following :

1. Cocoons Meat
2. Peace silk Poultry
3. Broilers Silkworm
4. Sweet Liquid Andhra Pradesh
5. Goat Honey


1 – iii; 2 – iv; 3 – ii; 4 – v; 5 – i

V. Analogy:

1. Water: pipe: Electric current:: ______

2. Copper: conductor : wood: : _______
Non conductor

3. Length : metre scale : current: : _________

4. Milli ampere: micro ampere: 10-3 A : : _________
10-6 A

VI. Very short answer:

1. Write about any two dairy products.

  1. Paneer
  2. Cheese

These two are dairy products. They are Nutritive food containing protein and calcium are made from milk.

2. What are the two types of fibres that are obtained from animals?

  1. Wool – silk fibre is obtained from the cocoon of silkworm.
  2. Wool is got from fleece of sheep or goat

3. What is shearing?
The fleece of the sheep is removed from its body. This is called shearing.

4. Write the symptoms of Anthrax.

  1. The symptoms are fever, cough, and shortness of breath, similar to typical pneumonia.
  2. Sometimes it may lead to nausea, vomiting, and diarrhea.

5. Define – Sericulture.

  1. Sericulture or silk farming is the cultivation of silk worms to produce silk.
  2. It is the rearing of silkworms to obtain silk.

6. How should we treat animals?

  1. We must love and protect animals.
  2. We should safeguard them and treat them with care.

7. Who invented the Ahimsa silk?
Kusuma Rajaiah, a Government officer from Andhra Pradesh proposed the Ahimsa way of silk production for making silks without killing the silkworms.

VII. Short Answer Questions :

1. What are the characteristics of wool? Give any three.

  1. It is resistant to heat, water, wear, and tear.
  2. It absorbs moisture.
  3. Wool insulates against cold. So wool is a good insulator.
  4. It does not wrinkle easily.

2. Write about any three uses of silk.

  1. Silk has natural beauty and elegance.
  2. It gives comfort in warm weather and warmth during colder months.
  3. It is used in the manufacture of classical and high fashion clothes, modern dresses particularly silk sarees, and the elegance of beautiful dresses.
  4. It is also used in households for making wall hangings, curtains, rugs, and carpets.
  5. It is also being used in the manufacture of surgical threads for sutures.

3. What are the common diseases that are found in Poultry?

Salmonellosis (diarrhea) Caused by bacteria
Ranikhet disease, (Fowlpox) Caused by virus
Aspergillosis Caused by fungus

X. Assertion and Reason :

1. Assertion: Wool is the fibre derived from the fur of animals.
Reason: Animals like goat, Yak, Alpaca, and rabbit yields wool.
(a) Both Assertion and reasoning are correct
(b) Assertion is correct but the reason is wrong
(c) Assertion is wrong but the reason is correct
(d) Assertion and Reason are incorrect
(a) Both Assertion and reasoning are correct

2. Assertion: Pencillin or ciprofloxacin.
Reason (R): These medicines cure cowpox.
(a) Assertion is correct Reason is wrong
(b) Assertion is wrong reason is correct
(c) Assertion is wrong reason is also wrong
(d) Assertion is correct and the reason is correct.
(d) Assertion is correct and the reason is correct.

Other Important Links for the 7th Book Back Solution Guide:

Tamil Nadu Class 7th Standard Book Back Guide PDF, Click the link – 7th Book Back Questions & Answers PDF

Click here to download Samacheer Kalvi 7th Books in English and Tamil – Samacheer Kalvi 7th Books PDF

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