NCERT Class 6 Science Chapter 3 Fibre to Fabric Solution

NCERT Class 6 Science Chapter 3 Fibre to Fabric

Exercises Question Answer Solution

1.Classify the following fibres as natural and synthetic:

nylon, wool, cotton, silk, polyester, jute

Answer: Nylon: Synthetic, Wool: Natural, Cotton: Natural, Silk: Natural, Polyester: Synthetic, Jute: natural

We get wool from the fleece of sheep or goat. Cotton plant produces cotton. Silkworm cocoon produces silk. And Outer layer of jute stem is taken to make jute fibre. So we get all these from nature, while we obtain nylon, polyester from chemical processes. So we call them synthetic.

2. State whether the following statements are true or false:

a) The yarn is made from fibres.

b) Spinning is a process of making fibres.

c) Jute is the outer covering of coconut.

d) The process of removing a seed from cotton is called ginning.

e) A weaving of yarn makes a piece of fabric.

f) Silk fibre is obtained from the stem of the plant.

g) Polyester is a natural fibre.

Answer: a) True b) False c) False d) True e) True f) False g) False.

Explanation: a)& b) Process of making yarn from fibres is called spinning.

c) We get jute fibres from the outer layer of a stem of the jute plant.

d) Cotton obtained from cotton fruit also contain cotton seeds. Seed is removed manually by hands or machines. We call this process ginning.

e) Weaving and knitting are the processes of arranging yarns in an organised manner. It produces fabric.

f) Silkworm cocoon produces silk.

g) Polyester is made through the chemical reaction of coal and petroleum.

3. Fill in the blanks:

a) Plant fibres are obtained from ________ and __________.

b) Animal fibres are ________ and __________.

Answer: a) Fruit, stem b) Wool, silk.

4. From which part of the plant cotton and jute are obtained?

Answer: Cotton is obtained from the fruit of the cotton plant, and jute is obtained from the stem of the jute plant.

5. Name two items that are made from the coconut fibre.

Answer: Ropes, Mattress, Door-mat.

6. Explain the process of making yarn from the fibre.

Answer: Fibres are the loose threads. To make yarn we twist and turn the fibres. We can do this by simple hands or by the use of simple machines like takli or charkha.

Next: Exercise Solution Chapter 4 Sorting Materials into Groups.

See also: Exercise solution Chapter 2 Components of Food.


Reference: NCERT Science Class 6 Chapter 3

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