Class 6 Science Chapter 3
Fibre to Fabric
|Chapter Name||Fibre to fabric|
|Category||Questions and Answers, NCERT Solutions|
Question 1 Classify the following fibres as natural or synthetic: nylon, wool, cotton, silk, polyester, jute
Answer: Natural Fibres : wool, cotton, silk, jute
Synthetic Fibres : nylon, polyester
Question 2 State whether the following statements are true or false:
a) 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 seed from cotton is called ginning.
e) Weaving of yarn makes a piece of fabric.
f) Silk fibre is obtained from the stem of a plant.
g) Polyester is a natural fibre.
Answer: a) Yarn is made from fibres. (True)
b) Spinning is a process of making fibres. (False)
c) Jute is the outer covering of coconut. (False)
d) The process of removing seed from cotton is called ginning. (True)
e) Weaving of yarn makes a piece of fabric. (True)
f) Silk fibre is obtained from the stem of a plant. (False)
g) Polyester is a natural fibre. (False)
Question 3 Fill in the blanks:
a) Plant fibres are obtained from_________ and ________ .
b) Animals fibres are __________ and ___________ .
a) Plant fibres are obtained from jute and cotton.
b) Animals fibres are silk and wool.
Question 4 From which parts of the plant cotton and jute are obtained?
Answer: Cotton is obtained from the fruits of the cotton plant, called cotton balls. Jute fibre is obtained from the stem of the jute plant.
Question 5 Name two items that are made from coconut fibre.
Answer: Ropes and jute bags.
Question 6 Explain the process of making yarn from fibre.
Answer: Yarn is a kind of long twisted thread. Yarn is made from fibres by the process of spinning. In the process of spinning ,fibres from a mass of cotton are drawn out and twisted. This brings the tiny fibres together to form long and twisted threads called yarn. Spinning converts fibres into yarn. Hold a lump of cotton fibres in the left hand. Now, start pulling out cotton fibres gently with the thumb and forefinger of right hand while twisting the cotton fibres continuously. We will get a cotton yarn.