The types of fibres and plastics. Science CBSE, Class 8: lessons, tests, tasks.

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1.	Natural fibres
2.	Introduction to synthetic fibers
3.	Synthetic fibre: Nylon
4.	Rayon: A semi-synthetic fibre
5.	Synthetic fibre: Polyester and Acrylic
6.	Characteristics of synthetic fibres
7.	Plastics
8.	Characteristics of plastic and its uses
9.	Impacts of plastics
10.	Methods of disposing plastics

1.	'True' or 'false' about introduction to plastics and fibres Difficulty: easy	2
2.	Answer the questions about synthetic polymers and natural fibre Difficulty: easy	2
3.	Natural fibres: choose the correct answer Difficulty: easy	4
4.	Answer the questions about rayon and synthetic fibres Difficulty: medium	4
5.	Synthetic fibres and plastics: choose the correct answer Difficulty: medium	4
6.	Analyse the statements about synthetic fibres and plastics Difficulty: medium	4
7.	Fibres: Select the correct answer Difficulty: medium	4
8.	Analyse the statements about natural fibres and plastics Difficulty: medium	4
9.	'True' or 'false' about natural polymers and plastics Difficulty: medium	4
10.	Plastics: Choose the correct answer Difficulty: medium	4
11.	Analyse the questions about fibres and plastics Difficulty: hard	4
12.	Fiibers and fabrics: analyse and choose an answer Difficulty: hard	4

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Training test

Difficulty: medium

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1.

Methodical recommendation

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