Class 7 Science Chapter 1 Solution – Fibre to Fabric | SEBA Assam | SCERT Assam (Part II)

SEBA Class 7 Science Chapter 1 Fibre to Fabric – Textbook Solutions & MCQ (Part II)

Find Class 7 Science Chapter 1 “Fibre to Fabric” Solutions for SEBA Assam (English Medium) students. This chapter, from Part II of the Science book, explains how natural and synthetic fibres are obtained and converted into fabrics. It covers the process of obtaining wool and silk, different types of fibres, and their uses in daily life. Our solutions include detailed textbook answers, multiple-choice questions (MCQs), and important explanations, helping students understand the entire process of fabric production, from raw materials to finished textiles. These solutions are designed to enhance conceptual clarity and improve exam preparation.

Class 7 Science

Chapter – 1 (Part II)         Ospin Academy

Fibre to Fabric

EXERCISE

Q. 1. You must be familiar with the following nursery rhymes:

(i) Baa baa black sheep, have you any wool’.

(ii) ‘Mary had a little lamb, whose fleece was white as snow’.

Answer the following:

(a) Which parts of the black sheep have wool?

Ans: The hair (fleece) of the black sheep have wool.

(b) What is meant by the white fleece of the lamb?

Ans: The white fleece is the white hair of the lamb.

Q. 2. The silkworm is:

(a) a caterpillar,

(b) a larva. Choose the correct option:

(i) (a)

(ii) (b)

(iii) both (a) and (b)

(iv) neither (a) nor (b).

Ans: (iii) Both (a) and (b).

Q. 3. Which of the following does not yield wool?

(i) Yak

(ii) Camel

(iii) Goat

(iv) Woolly dog.

Ans: (iv) Woolly dog.

Q. 4. What is meant by the following terms?

(i) Rearing.

Ans: The process of keeping, feeding, breeding and medical care of useful animals is called rearing of animals. These animals produce one or more useful products for human beings.

(ii) Shearing.

Ans: The fleece of the sheep along with a thin layer of skin is removed from its body. This process is called shearing.

(iii) Sericulture.

Ans: The rearing of silkworms for obtaining silk is called sericulture.

Q.5. Given below is a sequence of steps in the processing of wool. Which are the missing steps? Add them.

Shearing _______ sorting, _________, __________, ___________.

Ans: Shearing, scouring, sorting, drying, dyeing, spinning, weaving.

Q. 6. Make sketches of the two stages in the life history of the silk moth which are directly related to the production of silk.

Ans: Silkworm → Cocoon with pupa

Q. 7. Out of the fol! wing, which are the two terms related to silk production?

Sericulture, Floriculture, Moriculture, Apiculture, Silviculture.

Hints:

(i) Silk production involves cultivation of Mulberry leaves and rearing silkworms.

(ii) Scientific name of Mulberry is Morus alba.

Ans: (i) Sericulture.

(ii) Moriculture.

Q. 8. Match the words of Column I with those given in Column II:

Column – I	Column – II
1. Scouring	(a) Yields silk fibers
2. Mulberry leaves	(b) Wool yielding animal
3. Yak	(c) Food of silk worm
4. Cocoon	(d) Reeling (e) Cleaning sheared skin

Ans:

Column – I	Column – II
1. Scouring	(e) Cleaning sheared skin
2. Mulberry leaves	(c) Food of silk worm
3. Yak	(b) Wool yielding animal
4. Cocoon	(a) Yields silk fibers

Q.9. Given below is a cross word puzzle based on this lesson. Use hints to fill in the blank spaces with letters that complete the words:

Down	Acros
1. Thorough washing	1. Keep warm
2. Animal fiber	2. Its leaves are eaten by silkworms
3. Long thread like structure	3. Hatches from egg of moth

Ans: