What happens to the size of material when it is heated or cooled
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7
It shrinks.....
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10
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This is your answer.
Explanation:
Most materials contract when they are cooled and get bigger when they are warmed up. ... Negative thermal expansion occurs when, during heating, a crystal contracts along one or more crystal axes, while positive thermal expansion describes what happens when the material expands along one or more of these axes.
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