1. 3. Temperature
The Material World

2. Temperature
Temperature is a measure of the degree of agitation of the particles of a solid, liquid, or a gas. (⁰C, Celsius)
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3. Liquid at different temperature

4. This is when the volume of a solid, liquid or gaseous substance increase because of a rise in temperature. It happens because particles take up more space as they become agitated.
Thermal expansion

5. Thermal expansion of liquids

6. Thermal expansion of solids and gases