science - fibre to fabric

Class 7 - Science

Fibre to Fabric

Q&A
Question:

Make sketches of the two stages in the life history of the silk moth which are directly related to the production of silk.

Answer:

ncert-solutions-class-7-science-chapter-3-fibre-to-fabric-02
ncert-solutions-class-7-science-chapter-3-fibre-to-fabric-01



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Questions and Answers


Fibre to Fabric - Questions
1.

What is meant by the following terms?
(i) Rearing (ii) Shearing (iii) Sericulture


Answer
2.

Make sketches of the two stages in the life history of the silk moth which are directly related to the production of silk.


Answer
3.

Match the words of Column I with those given in Column II:
ncert-solutions-class-7-science-chapter-3-fibre-to-fabric-03


Answer
4.

Given below is a crossword puzzle based on this lesson. Use hints to fill in the blank spaces with letters that complete the words.
ncert-solutions-class-7-science-chapter-3-fibre-to-fabric-05
ncert-solutions-class-7-science-chapter-3-fibre-to-fabric-06


Answer
5.

Given below is a sequence of steps in the processing of wool. Which are the missing steps? Add them.
Shearing, ________ , sorting,________, __________


Answer
6.

Out of the following, which are the two terms related to silk production? Sericulture, floriculture, moriculture, apiculture and silviculture.
Hints:  (i) Silk production involves cultivation of mulberry leaves and rearing silkworms. (ii) Scientific name of mulberry is Morus alba.


Answer
7.

The silkworm is (a) a caterpillar (b) a larva. Choose the correct option.

(i) (a) (ii) (b) (iii) both (a) and (b) (iv) neither (a) nor (b)


Answer
8.

You must be familiar with the following nursery rhymes:
(i) ‘Baa baa black sheep, have you any Wool.'
(ii) ‘Mary had a little lamb, whose fleece was white as snow.'
Answer the following:
(a) Which parts of the black sheep have wool?
(b) What is meant by the white fleece of the lamb?


Answer
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