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) Animal fibres are __________ and ___________ .
Answer:
- a) Plant fibres are obtained from jute and cotton.
- b) Animal 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. These are 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:
Jute bags, ropes and Foot mats.
Question 6: Explain the process of making yarn from fibre.
Answer:
- The process of making yarn from the fibre is known as Spinning.
- In this process, a large number of fibres of cotton wool are drawn out and twisted, so that these join together to form a yarn.
- Devices used for spinning are takli charkha and modern machines.
- The use of charkha was popularised by Mahatma Gandhi as a part of the Independence movement.
- After spinning, the fabric is made from yarn.