NCERT Science Class- VI Chapter-3: Fibre to Fabric Solutions
Exercises
Q 1: Classify the following fibres as natural or synthetic:
nylon, wool, cotton, silk, polyester, jute
Ans:
Natural Fibres: wool, cotton, silk, jute
Synthetic Fibres: nylon, polyester
Q 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.
Ans:
- 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)
Q 3: Fill in the blanks:
- a) Plant fibres are obtained from_________ and ________
- b) Animals fibres are __________ and ___________
Ans:
- a) Plant fibres are obtained from jute and cotton.
- b) Animals fibres are silk and wool.
Q 4: From which parts of the plant cotton and jute are obtained?
Ans: Cotton is obtained from the fruits of the cotton plant, called cotton balls. Jute fibre is obtained from the stem of the jute plant.
Q 5: Name two items that are made from coconut fibre.
Ans: Jute bags, ropes and door mats.
Q 6: Explain the process of making yarn from fibre.
Ans: The process of making yarn from fibres is called spinning. In this process, fibres from a mass of cotton are drawn out and twisted. This brings the fibres together to form a yarn.
Spinning is done at home using simple devices like hand spindle (Takli) and charkha.
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