Monday, 19 August 2019

CBSE Class 8 Science - Synthetic Fibres and Plastics (Worksheet) (#cbsenotes)(#eduvictors)

Synthetic Fibres and Plastics 

CBSE Class 8 Science 
(Worksheet) 
CBSE Class 8 Science - Synthetic Fibres and Plastics (Worksheet) (#cbsenotes)(#eduvictors)

Fill in the blanks

1. A synthetic fibre consists of numerous ________ joined together to form a large polymer.

2. Cotton is an example of _______ fibre.

3. Plastics are ________ conductors of electricity.

4. __________ soften or melt on heating.




5. _______ is a semi-synthetic fibre and is also called as artificial silk.

6. ________ is a type of ________ and is a good absorbent. It is prepared by blending terylene with cotton.

7. ________ is a type of plastic and is used as coating of non-stick utensils.

8. The biggest disadvantage of plastics is that they cause environmental pollution because they are non-____________.

9. PVC stands for _________ ____________.

10. Acrylic is used as a substitute for natural _________.


Answers:
1: monomers
2: natural
3: poor
4: Thermoplastics
5: Rayon
6: Terycot, polyster
7. Teflon
8: non-biodegradable
9: Polyvinyl Chloride
10: wool

☛See also:
Ch3 - Synthetic Fibres and Plastics (Q & A) 
Ch3 - Synthetic Fibres and Plastics (MCQs)
Ch3 - Synthetic Fibres and Plastics - Know Your Plastic Bottle (RESIN Coding)



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