NCERT Solutions For Class 6 Science Chapter – 3
Q1. Classify the following fibers as natural or synthetic: nylon,wool,cotton,silk,polyester,jute.
Answer:-
Natural fibers: wool,cotton,jute,silk.
Synthetic fibers: nylon,polyester.
Q2. State whether following statements are ‘true’ or ‘false’.
- Yam is made from fibers.
- Spinning is a process of making fibers.
- Jute is the outer covering of coconut.
- The process of removing seeds from cotton is called ginning.
- Silk fiber is obtained from the stem of a plant.
- Polyester is a natural fiber.
Answer:-
- True
- False
- False
- True
- True
- False
- False
Q3. Fill n the blanks:
- Plant fibers are obtained from _____ and ______.
- Animal fibers are ______ and ______.
Answer:-
- Cotton plants, jute plants
- Wool , Silk
Q4. From which part of the plant cotton and ute are obtained?
Answer:-
( i) Cotton – Cotton balls ( from the surface of cotton seeds)(fruit)
( ii) Jute – stem.
Q5. Name two items that are made from coconut fiber.
Answer:-
( I) Ropes
(ii) Mats
Q6. Explain the process of making yam from fiber.
Answer:-
Yams are made up of thin strands called fibers. The process of making yam from fibers is called spinning. In this process , a mass of cotton wool are drawn out and twisted. This brings the fibers together to form yarn.