EASY
7th CBSE
IMPORTANT
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Wool traps more air in it as compared to cotton.

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Important Questions on Fibre to Fabric : Animal Fibers

EASY
7th CBSE
IMPORTANT
Science 7>Chapter 3 - Fibre to Fabric : Animal Fibers>Chapter Based Formative Assessment>Q 3
The insect in the cocoon is killed before reeling the silk.
EASY
7th CBSE
IMPORTANT
Science 7>Chapter 3 - Fibre to Fabric : Animal Fibers>Chapter Based Formative Assessment>Q 4
Silk fibres are long, even, straight, and fine.
EASY
7th CBSE
IMPORTANT
Science 7>Chapter 3 - Fibre to Fabric : Animal Fibers>Chapter Based Formative Assessment>Q 5
During scouring, the sheared hair is washed with the soap solution.
HARD
7th CBSE
IMPORTANT
Science 7>Chapter 3 - Fibre to Fabric : Animal Fibers>Chapter Based Formative Assessment>PUZZLES AND QUIZ

Solve the crossword puzzle with the help of the clues given.

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ACROSS

1. Variety of wool obtained from the underfur of Kashmiri goat. (8)

2. Straightening curly wool fibres. (7)

3. A sticky fluid secreted by the salivary glands when caterpillar enters the pupal stage. (7)

4. The fibre obtained by separating silk filaments from the cocoons. (7)

5. Larvae that hatched out in 3-5 days.

DOWN

6. A ball-like structure of silk thread formed around the body of pupa. (6)

7. Removal of fleece along with a thin layer of the sheep’s skin. (8)

8.  Leaves of a plant on which female silk moth lays eggs. (8)

9.  Washing of sheared skin with hair with soap. (8)