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8th CBSE
IMPORTANT
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Melamine is used for making 

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Important Questions on Synthetic Fibres and Plastic

EASY
8th CBSE
IMPORTANT
Start Up Science>Chapter 3 - Synthetic Fibres and Plastic>Some Questions from NCERT>Q 1
Explain why some fibres are called synthetic.
EASY
8th CBSE
IMPORTANT
Start Up Science>Chapter 3 - Synthetic Fibres and Plastic>Some Questions from NCERT>Q 2

Rayon is different from synthetic fibres because 

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8th CBSE
IMPORTANT
Start Up Science>Chapter 3 - Synthetic Fibres and Plastic>Some Questions from NCERT>Q 3
Synthetic fibres are synthesised from the raw materials called _____.
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8th CBSE
IMPORTANT
Start Up Science>Chapter 3 - Synthetic Fibres and Plastic>Some Questions from NCERT>Q 4

Give examples which indicate that nylon fibres are very strong.

EASY
8th CBSE
IMPORTANT
Start Up Science>Chapter 3 - Synthetic Fibres and Plastic>Some Questions from NCERT>Q 5
Explain why plastic containers are favoured for storing food.
MEDIUM
8th CBSE
IMPORTANT
Start Up Science>Chapter 3 - Synthetic Fibres and Plastic>Some Questions from NCERT>Q 6
Explain the difference between thermoplastics and thermosetting plastics.
MEDIUM
8th CBSE
IMPORTANT
Start Up Science>Chapter 3 - Synthetic Fibres and Plastic>Some Questions from NCERT>Q 7

Explain why the saucepan handles are made of thermosetting plastics.  

MEDIUM
8th CBSE
IMPORTANT
Start Up Science>Chapter 3 - Synthetic Fibres and Plastic>Some Questions from NCERT>Q 7

Explain why the following are made of thermosetting plastics.
Electric plugs/ switches/ plug boards.