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Tamil Nadu Board of Secondary EducationSSLC (English Medium) Class 7

What are the two types of fibres that are obtained from animals? - Science

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Question

What are the two types of fibres that are obtained from animals?

Short Note

Solution

  1. Wool – silk fibre is obtained from the cocoon of silkworm.
  2. Wool is got from fleece of sheep or goat
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Animal Fibres: Wool
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Chapter 5: Animals in Daily Life - Evaluation [Page 91]

APPEARS IN

Samacheer Kalvi Science - Term 3 [English] Class 7 TN Board
Chapter 5 Animals in Daily Life
Evaluation | Q VI. 2. | Page 91

RELATED QUESTIONS

You must be familiar with the given nursery rhymes

Baa baa black sheep, have you any wool.

Answer the following:

Which parts of the black sheep have wool?


You must be familiar with the following nursery rhymes:

Mary had a little lamb, whose fleece was white as snow

Answer the following:

What is meant by the white fleece of the lamb?


Which of the following does not yield wool?


What is meant by term Shearing ?


What is meant by term Sericulture?


Given below is a crossword puzzle based on this lesson. Use hints to fill in the blank spaces with letters that complete the words.

Down

(D) 1: Thorough washing

2 : Animal fibre

3 : Long thread like structure

Across

(A) 1 : Keeps warm

2 : Its leaves are eaten by silkworms

3 : Hatches from egg of moth


______ is a non-biodegradable material


True or False – If False give the correct answer

Ahimsa silk is otherwise known as Mulberry silk.


What are the characteristics of wool? Give any three.


Paheli wanted to buy a gift made of animal fibre obtained without killing the animal. Which of the following would be the right gift for her to buy?


State whether the following statements are True or False. If false, correct them.

In India, camels and goats are generally reared for obtaining wool.


State whether the following statements are True or False. If false, correct them.

In the process of obtaining wool from fleece, sorting is done after scouring.


How does the hair of certain animals help in keeping their bodies warm?


Various steps involved to obtain wool from fleece are given here.

  1. Picking out the burrs
  2. Dyeing in various colours
  3. Shearing
  4. Scouring
  5. Sorting

Write the above steps in the correct sequence in which they are carried out.


A wholesale woollen fibre dealer gets the woollen fibre of different textures sorted for various purposes. Match the items in Column I with the woollen fibre in Column II.

Column I Column II
(a) Pashmina shawl (i) Camel wool
(b) Woollen carpet (ii) Angora wool
(c) Baby blanket (iii) Kashmir goat
(d)  Woollen sweater (iv)  Sheep wool

The scouting process during the processing of wool refers to ______.


The process called ______ involves the removal of dried wool.


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