CBSE Class 6 Science
Chapter 3: Fibre to Fabric
NCERT Solutions
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.
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) True
b) False
b) False
c) False
d) True
e) True
f) False
g) False
3. Fill in the blanks:
a) Plant fibres are obtained from_________ and ________ .
b) Animals fibres are __________ and ___________ .
Answer:
a) Cotton plants and Jute plants.
b) wool and silk
Answer:
Cotton: Fruit(cotton bolls)
Jute: Stem
5. Name two items that are made from coconut fibre.
Answer:
We can make ropes and mats using coconut fibre.
6. Explain the process of making yarn from fibre
Answer:
The process of making yarn from fibres is called spinning. In this process, fibres from a mass of cotton wool are drawn out and twisted. This brings the fibres together to form a yarn. Simple devices like hand spindle and charkha, are simple hand operated spinning devices. Spinning of yarn on a large scale is done with the help of spinning machines.
Answer:
The process of making yarn from fibres is called spinning. In this process, fibres from a mass of cotton wool are drawn out and twisted. This brings the fibres together to form a yarn. Simple devices like hand spindle and charkha, are simple hand operated spinning devices. Spinning of yarn on a large scale is done with the help of spinning machines.
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