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NCERT Solution
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Exercise
1. Classify the following fibres as natural or synthetic:
    Nylon, wool, cotton, silk, polyester, jute.

   
    
Solution
     
Natural fibre Synthetic fibre
Cotton
Wool
Silk
Jute
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 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.

    
    
 Solution

     (a) T
     (b) F
     (c) F
     (d) T
     (e) T
     (f ) F
     (g) F

3. Fill in the blanks:
    (a) Plant fibres are obtained from ------------ and --------------.
    (b) Animal fibres are ------------- and -----------.

   
    
Solution
    
    (a) Plants fibres are obtained from cotton and jute.
    (b) Animals fibres are silk and wool.

4. From which parts of the plant cotton and jute are obtained?
   
    
Solution
   
    ​Cotton is obtained  from fruit of the cotton plant. Jute is obtained  from stem of jute plant.

5. Name two items that are made from coconut fibre.
    
  
 Solution
    
    (a) Bags
    (b) Coir

6. Explain the process of making yarn from fibre.
  
  
 Solution
  
   The process of making yarn from  fibre 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. A simple device used for spinning is a hand spindle, also called takli. Another hand operated device used for spinning is charkha .
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