TOPIC : Fibre to Fabric
Answer the following questions
1. What do you mean by the term ‘Selective breeding’?
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2. Name any four wool yielding animals.
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3. Usually the fleece of sheep is removed during the hot weather. Why?
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4. What do you mean by Scouring?
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5. How is Sorter’s disease caused ?
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6. How will you distinguish synthetic silk from pure silk?
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7. What is Reeling of silk? How is it done?
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8. Explain the different steps involved in the Processing of Silk.
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9. Name the protein which is the chief component of wool fibres.
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10. Complete the following table.
Please click on below link to download CBSE Class 7 Science Fibre to fabric Set C