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SAI International School
Class – VII
Subject – Chemistry

Topic –Animal Fibres
Subtopic –Concept Mapping of Animal Fibres
HOME ASSIGNMENT

Concept_ Wools & Wool yielding Animals

SL.NO. Questions marks Skills
Q1. Name two plant fibres. 1 K
Q2 Name two wool yielding animals other than sheep. 1 U
Q3 Name the wool obtained from cashmere goat. 1 K
Q4 Which wool is considered as a healthy natural product? 1 U
Q5 What do you mean by kemp? 1 U
Concept-Sheep farming, sheep shearing & processing ofwool
SL. Questions marks Skills
No.
Q1. Define sheep farming. 1 K
Q2 What would happen if shearing will be done in winter? 1 U
Q3 Why it is safe to shear the animalsby using machine shear? 1 U
Q4 Name the second step of wool processing and write its 1 U&A
importance.
Q5 Is grading of wool is necessary? justify your answer. 1 HOTS
Concept_Properties and qualities of wool

SL. Questions Marks Skills
No.
Q1. Why wool is act as insulator? 1 U

Q2 Is wool biodegradable? Justify your answer. 1 U&A
Q3 What happened when wool is subjected to flame? 1 K

Q4 Which property of wool shows nice appearance for long 1 U
time?
Q5 Write the factors based on which quality of wool can be 1 U
judged.
Concept_ Lifecycle of silk moth & Processing of silk

SL. Questions Marks Skills
No.
Q1. From which stage of silk moth produce cocoon? 1 K

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