MEDIUM
8th CBSE
IMPORTANT
Earn 100

What did early humans wear? How are the clothes we wear today different from what early humans used to wear?

Important Questions on Synthetic Fibres and Plastics

EASY
8th CBSE
IMPORTANT
Galaxy A Course in Science Book 8>Chapter 3 - Synthetic Fibres and Plastics>Quick Check?>Q a)
Each repeating unit of a polymer is called a _____.
EASY
8th CBSE
IMPORTANT
Galaxy A Course in Science Book 8>Chapter 3 - Synthetic Fibres and Plastics>Quick Check?>Q b)
Cellulose is a polymer of _____.
EASY
8th CBSE
IMPORTANT
Galaxy A Course in Science Book 8>Chapter 3 - Synthetic Fibres and Plastics>Quick Check?>Q c)
_____ is called artificial silk.
EASY
8th CBSE
IMPORTANT
Galaxy A Course in Science Book 8>Chapter 3 - Synthetic Fibres and Plastics>Quick Check?>Q d)

Fill in the blanks with correct word given in the bracket.

(Cotton / Silk / Nylon)

_____ is used to make swimwear.

EASY
8th CBSE
IMPORTANT
Galaxy A Course in Science Book 8>Chapter 3 - Synthetic Fibres and Plastics>Quick Check?>Q a)
On burning, cotton fibres smell like burning hair.
MEDIUM
8th CBSE
IMPORTANT
Galaxy A Course in Science Book 8>Chapter 3 - Synthetic Fibres and Plastics>Quick Check?>Q b)
Polyethylene and polyvinyl chloride (PVC) are examples of thermoplastics.
MEDIUM
8th CBSE
IMPORTANT
Galaxy A Course in Science Book 8>Chapter 3 - Synthetic Fibres and Plastics>Quick Check?>Q c)
Plastic is a good conductor of electricity.
EASY
8th CBSE
IMPORTANT
Galaxy A Course in Science Book 8>Chapter 3 - Synthetic Fibres and Plastics>Quick Check?>Q d)
Only way to get rid of plastic is to burn them.