Page 1 - H.A-2 PRACTICE WORKSHEET

SAI International School
Class – VII

Subject – Chemistry
Topic – Animal Fibres
Sub-Topic – Fibres, Wool, Animal Yielding Wool

PRACTICE WORKSHEET 1

General Instructions:

All MCQ based questions, you have to choose only one option.

For Assertion & Reasoning question choose the option appropriate.

Q. M SKIL
No ar
. ks

1 Starting point of the textile chain is called as 1 R
i) Fabric ii) Yarn iii) Fibres iv) Dress materials

2 The woollen coat of the animal is called as 1 K
i) Skin ii) Under coat hair iii) Outer coat hair iv) Fleece

3 Outer coarse hair of the sheep is called 1 K

i)Rough ii) Soft iii) Kemp iv) Fleece
K&A
In the following questions 4 to 5, a statements of Assertion
(A) is followed by a statement of reason
Mark the correct choice a) both assertion and reason R
are true
And reason (R) is the correct explanation of assertion(A)
b) Both assertion (A) and reason are true but reason is not
correct explanation of assertion (A).
c) Assertion (A) is true but reason is false.
d) Assertion (A) is false and reason is true.
e) Both assertion (A) and reason are false.

4 Assertion: Animals yielding wool are seen in colder regions. 1
Reason: Woollen coat grow in their body to protect from
heavy winter.
5. Assertion: Woollen fabrics trap the body heat and protect us 1
from cold.
Reason: It acts as an insulator.
6 What is fibre? Name four animals other than sheep yielding 3 K&A
wool. Name the wool obtained from Cashmere goat.

7. Answer the following questions. 3 K
Name the animal from which healthy natural wool is
produced.

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