MEDIUM
8th CBSE
IMPORTANT
Earn 100

What happens when a piece of cotton and a piece of nylon are burnt?

Important Questions on Synthetic Fibres and Plastics

MEDIUM
8th CBSE
IMPORTANT
Galaxy A Course in Science Book 8>Chapter 3 - Synthetic Fibres and Plastics>Put on your thinking cap>Q 6
Differentiate between thermoplastics and thermosets.
MEDIUM
8th CBSE
IMPORTANT
Galaxy A Course in Science Book 8>Chapter 3 - Synthetic Fibres and Plastics>Put on your thinking cap>Q 6
Names of some things are given below. All are made of plastic. Which of the following things can be recycled and which cannot? Give reasons.

Electrical wire coated with plastic, water bottle, electrical plug, plastic table, polybag, coffee pot handle, plastic bowl, plastic spoon, plastic chair, mobile phone casing.
MEDIUM
8th CBSE
IMPORTANT
Galaxy A Course in Science Book 8>Chapter 3 - Synthetic Fibres and Plastics>Put on your thinking cap>Q 6
How are polybags harmful to animals and small children?
MEDIUM
8th CBSE
IMPORTANT
Galaxy A Course in Science Book 8>Chapter 3 - Synthetic Fibres and Plastics>Put on your thinking cap>Q 6
How can you contribute to being environment-friendly?
MEDIUM
8th CBSE
IMPORTANT
Galaxy A Course in Science Book 8>Chapter 3 - Synthetic Fibres and Plastics>Put on your thinking cap>Q 7

Which fibre is used in making the following things?

Question Image

MEDIUM
8th CBSE
IMPORTANT
Galaxy A Course in Science Book 8>Chapter 3 - Synthetic Fibres and Plastics>Extended learning>Q 1
A plastic container used for storing food or water usually has a number I, 2, 3, 4, 5, 6, or 7 printed on it. What is the significance of these numbers?
HARD
8th CBSE
IMPORTANT
Galaxy A Course in Science Book 8>Chapter 3 - Synthetic Fibres and Plastics>Extended learning>Q 2
What do the terms 'degradable plastics' and 'bioplastic' mean? Find out the names of the companies that use these plastics and the reason for using them.
MEDIUM
8th CBSE
IMPORTANT
Galaxy A Course in Science Book 8>Chapter 3 - Synthetic Fibres and Plastics>Extended learning>Q 3
How is plastic recycled? List some uses of this recycled plastic.