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Tamil Nadu (TNBSE)Class 7 Science★ 5-8 marks in the TN Class 7 Term 3 exam through book-back MCQs, true/false and short answers

Animals in Daily Life

Samacheer Kalvi (TN State Board) Class 7 Science — Term 3 Chapter 5, Animals in Daily Life. Useful products from animals — milk and eggs as food, the animal fibres wool (from goat and sheep hair) and silk, sericulture (silk farming), and the care and protection of animals, with the actual book-back questions, common mistakes and quick revision.

⏱ 14 min readEasy difficulty✓ Free · NCERT-aligned

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By the end of this chapter you'll be able to…

1List food products obtained from animals
2Identify wool and silk as animal fibres
3State the source of wool and silk
4Define sericulture
5Explain the need to care for animals

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Why this chapter matters

Animals in Daily Life shows how animals provide food and fibres and why we must care for them. Animal products, wool, silk and sericulture are directly tested book-back content in the TN Class 7 Term 3 exam.

Before you start — revise these

A 5-minute refresher here will save you 30 minutes of confusion below.

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Chapter 16 — Polymer Chemistry

Natural fibres.

Animals in Daily Life — Class 7 Science (Samacheer Kalvi)

TN State Board (Samacheer Kalvi) Class 7 Science, Term 3 — Chapter 5. The many ways animals help us.

1. About this chapter

This chapter covers the food products we get from animals, the animal fibres (wool and silk), sericulture, and the care of animals.

2. Food products from animals

Milk is the daily essential product obtained from cattle; it is rich in proteins and calcium.
Eggs are rich in protein.
Other animal foods include meat, fish and honey.

3. Animal fibres

The two fibres obtained from animals are wool and silk.
Wool comes from the hair of sheep and goats and is used to make warm clothes.
Silk is the fibre obtained from the cocoon of the silkworm.

4. Sericulture and animal care

Sericulture (silk farming) is the rearing of silkworms to produce silk.
Animals must be cared for and protected — given proper food, shelter, clean surroundings and medical care — and not be treated cruelly.

5. Worked examples

Example 1. Which animal product is rich in protein and calcium? Milk.

Example 2. From which animal part is wool obtained? The hair of sheep and goats.

Example 3. What is sericulture? The rearing of silkworms to produce silk.

6. Book-back questions (Samacheer Kalvi)

I. Choose the correct answer

The daily essential product obtained from cattle is — (a) honey / (b) milk. Ans: (b) milk.
Eggs are rich in — (a) protein / (b) water. Ans: (a) protein.
The part of the goat and sheep used to make clothes is the — (a) skin / (b) hair. Ans: (b) hair.
The cultivation and production of silk is called — (a) agriculture / (b) sericulture. Ans: (b) sericulture.

II. Fill in the blanks 5. Milk is rich in proteins and calcium. 6. The two fibres obtained from animals are wool and silk.

III. True or False 7. Wool is the fibre derived from the silkworm. — False (silk is from the silkworm; wool is from sheep/goat hair).

IV. Answer briefly 8. What is sericulture? — The rearing of silkworms to obtain silk. 9. Why should we care for animals? — Because they give us many useful products and deserve proper food, shelter and kind treatment.

7. Common mistakes

Mistake: Saying wool comes from the silkworm. Fix: Silk comes from the silkworm; wool comes from sheep and goat hair.
Mistake: Thinking milk has only protein. Fix: Milk is rich in protein and calcium.
Mistake: Confusing sericulture with farming crops. Fix: Sericulture is the rearing of silkworms for silk.

8. Quick revision

Term 3 · Ch 5 · animals in daily life.
Food: milk (from cattle; protein + calcium), eggs (protein), meat, fish, honey.
Animal fibres: wool (sheep/goat hair) and silk (silkworm cocoon).
Sericulture = rearing silkworms for silk; care for and protect animals.

Key formulas & results

Everything you need to memorise, in one card. Screenshot this for revision.

Food products

milk (cattle; protein + calcium), eggs (protein)

Daily nutrition.

Animal fibres

wool (sheep/goat hair) and silk (silkworm cocoon)

Two fibres.

Sericulture

rearing silkworms to produce silk

Silk farming.

Animal care

food, shelter, cleanliness, kindness

Protection.

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Common mistakes & fixes

These are the exact errors that cost students marks in board exams. Read them once, save yourself the trouble.

WATCH OUT

✗ Saying wool comes from the silkworm

✓ Silk comes from the silkworm; wool comes from sheep and goat hair.

WATCH OUT

✗ Thinking milk has only protein

✓ Milk is rich in protein and calcium.

WATCH OUT

✗ Confusing sericulture with farming crops

✓ Sericulture is the rearing of silkworms for silk.

NCERT exercises (with solutions)

Every NCERT exercise from this chapter — what it covers and how many questions to expect.

Choose the correct answer

Book-back MCQs on milk, eggs, wool and sericulture.

Questions

Fill in the blanks / True or False

Calcium in milk, the two animal fibres and silk vs wool.

Questions

Answer briefly

Sericulture and caring for animals.

Questions

Practice problems

Try each one yourself before tapping "Show solution". Active recall > rereading.

Q1EASY· MCQ

The daily essential product obtained from cattle is ____.

▶ Show solution

milk.

Q2EASY· MCQ

Eggs are rich in ____.

▶ Show solution

protein.

Q3EASY· MCQ

The cultivation and production of silk is called ____.

▶ Show solution

sericulture.

Q4EASY· True/False

True or False: Wool is the fibre derived from the silkworm.

▶ Show solution

False — silk is from the silkworm; wool is from sheep/goat hair.

Q5EASY· Fill in the blanks

The two fibres obtained from animals are ____.

▶ Show solution

wool and silk.

Q6EASY· Answer briefly

What is sericulture?

▶ Show solution

Sericulture is the rearing of silkworms to obtain silk.

5-minute revision

The whole chapter, distilled. Read this the night before the exam.

•Term 3 Chapter 5 of Samacheer Kalvi Class 7 Science.
•Milk (from cattle) is rich in protein and calcium; eggs are rich in protein.
•The two animal fibres are wool and silk.
•Wool comes from the hair of sheep and goats; silk comes from the silkworm's cocoon.
•Sericulture is the rearing of silkworms to produce silk.
•Animals should be cared for with food, shelter, cleanliness and kindness.

Tamil Nadu (TNBSE) marks blueprint

Where the marks come from in this chapter — so you can plan your prep.

Typical chapter weightage: 5-8 marks across book-back MCQ, true/false and short answers

Question type	Marks each	Typical count	What it tests
MCQ / Fill	1	4-5	Products and fibres
True / False	1	1	Silk vs wool
Short Answer	2	1-2	Sericulture, animal care

Prep strategy

Match each product to its source
Remember wool = sheep/goat, silk = silkworm
Learn the word sericulture
Note milk has protein and calcium

Where this shows up in the real world

This chapter isn't just an exam topic — it lives in the world around you.

Food

Milk, eggs and meat are important parts of our diet.

Clothing

Wool and silk are used to make clothes.

Livelihood

Dairy farming and sericulture support many families.

Exam strategy

Battle-tested tips from teachers and toppers for this chapter.

Match products to their animal sources
Keep wool and silk sources distinct
Define sericulture precisely
Mention protein and calcium for milk

Going beyond the textbook

For olympiad aspirants and curious learners — topics that build on this chapter.

Trace how raw silk is obtained from a silkworm cocoon.
List three ways a community can care for stray animals.

Where else this chapter is tested

CBSE board isn't the only one — other exams test this chapter too.

TN Class 7 Term 3 ExamMedium

NMMS / Foundation ScienceMedium

School unit testsHigh

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Questions students ask

The real ones — pulled from the Q&A community and tutor sessions.

Wool is obtained from the hair of sheep and goats and is used for warm clothing, while silk is obtained from the cocoon of the silkworm and is a smooth, shiny fibre.

Milk is rich in protein and calcium, which are needed for growth and for strong bones and teeth, making it an important daily food.

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