What are polymers also known as?
Polymers are also known as plastics.
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What are four useful properties of polymers?
1. They are electrical and thermal insulators.
2. They are flexible.
3. They have low density.
4. They are easily moulded.
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How are ceramics made?
Ceramics are made by heating substances like clay to a high temperature.
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What are two properties of ceramics?
1. They are electrical and thermal insulators.
2. They are brittle.
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What are composite materials?
Composites are materials made by combining two or more materials to produce a material with enhanced properties.
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What materials make up fibreglass?
Fibreglass consists of glass fibres embedded in plastic.
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What materials make up concrete?
Concrete contains gravel and sand embedded in cement.
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