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Surprise Test - 1: Subject: Chemistry Marks: 10 Class - Vii

The document is a chemistry test for class 7 students with 10 marks. It contains 3 sections - the first asks students to answer 5 questions about wool and silk production processes and properties, the second is a matching question with 4 pairs to match between wool/silk production terms, and the third section is blank for students to answer. The test covers topics like why wool is sheared only in summer, hazards of wool industry, factors determining wool fineness and sheep breeds with fine wool, why silk has a shiny appearance, and 4 properties of wool.

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93 views1 page

Surprise Test - 1: Subject: Chemistry Marks: 10 Class - Vii

The document is a chemistry test for class 7 students with 10 marks. It contains 3 sections - the first asks students to answer 5 questions about wool and silk production processes and properties, the second is a matching question with 4 pairs to match between wool/silk production terms, and the third section is blank for students to answer. The test covers topics like why wool is sheared only in summer, hazards of wool industry, factors determining wool fineness and sheep breeds with fine wool, why silk has a shiny appearance, and 4 properties of wool.

Uploaded by

sameershahzan
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as DOCX, PDF, TXT or read online on Scribd
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Subject: chemistry SURPRISE TEST -1

Marks: 10 Class -VII


FIBER TO FABRIC

I. Answer the following:

1. Why shearing of wool done only in summer?


2. What are the main hazards of wool industry?
3. What determines the finesse of wool and name the breed of sheep
which bears fine wool.
4. Silk is having shimmer appearance .Give reason
5. List four properties of wool.

II. Match the following:

Column I Column II
Scouring Yields silk fibers
Cocoon Wool yielding animal
Yak Food of silk worm
Mulberry leaves Cleaning sheared skin

III

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