| A | B |
|---|
| state | the form in which matter exists (3: solid, liquid, gas) |
| change of state | the physical change from one state of matter to another |
| melting | the change of state from a solid to a liquid |
| melting point | the temperature at which a solid changes to a liquid |
| freezing | the change of state from a liquid to a solid |
| freezing point | the temperature at which a substance changes from a liquid to a solid |
| bimetallic strip | a strip made of two different metals that expand at different rates; inside many thermostats |
| evaporation | vaporization that occurs at the surface of a liquid |
| boiling | vaporization that occurs on and below the surface of a liquid |
| boiling point | the temperature at which a liquid boils |
| condensation | a change from the gas state to the liquid state |
| thermal expansion | the expansion of matter when it is heated |
| thermostat | a device that regulates temperature |
| vaporization | the process by which matter changes from the liquid to the gas state |
