Fibre To Fabric Class 6th Science Lesson 3

 

NOTES PREPARED BY 
ASHAQ HUSSAIN BHAT 
TEACHER SCHOOL 
EDUCATION DEPARTMENT 
JAMMU AND KASHMIR

'Fibre to Fabric' lesson 6

Text book Exercises

Classify the following fibres as natural or synthetic:

nylon, wool, cotton, silk, polyester, jute

Ans:-Natural fibres  :-Wool, Cotton, Silk, Jute

Synthetic fibers :- 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
(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 Plant, Jute plant

(b) Wool, Silk

4. From which parts of the plant cotton and jute are obtained?

Ans:-Cotton :- Cotton bolls (Fruit) 

Jute:- Stem

5. Name two items that are made from coconut fibre.

Ans:- Mats, Ropes 

6. Explain the process of making yarn from fibre.

Ans:- In the process of making yarn from fibre. First a boll of cotton is twisted then it is sinned on spinner in this way yarn is made from fibre. 

7. How is silk obtained from a cocoon?

Ans:-The cocoon is kept under sun than it is boiled in hot water for quite some time till it's threads loosen , than one end of the thread is picked and reeled out ,in this way silk is obtained from cocoon. 

8. What is sericulture?

Ans:-Rearing , Breeding and feeding of silk worms (Caterpillars) to obtain silk for commercial and domestic purposes is called  Sericulture

9. What are the factors which affect the quality of the wool?

Ans:-There are so many factors which affect the quality of wool which are as under;

(a) Parasitic disease

(b) Chemicals

(c) weather

(d) Hormones

(e) Photo period

(f) Sheep breed

g) Nutrition of sheep

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