Page 231 - Science Course 3 (Book 1)

Mo6-L2b: What are Ceramics and Plastics?

Polyester is strong, stretchable, water Polycarbonate is very strong and has low density.
resistant, dries quickly, and has low It is used to make safety items such as helmets
density. It is good for making because it can withstand strong impact or force
sportswear clothes which are light,
comfortable, and allow for
movement.

PET is waterproof and has low density. It can be
recycled so is used to make water bottles and other
packaging.
Expanded Polystyrene is waterproof and has low
density. It is also a good thermal insulator so is used
to make coolers.

Key Concept

Polyethene is strong, flexible, waterproof, and has a What are Ceramics and Plastics?
low density. It is used to make plastic bags.
What are plastics and their uses?

PVC is strong, waterproof, low density, and is durable
(long-lasting). It can also be easily colored so is used
to make containers, kitchenware, toys, and other items.

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