| Term | Definition |
|---|
| boiling point | the temperature at which a liquid changes to a gas (100 degrees C for water) |
| melting point | the temperature at which a solid changes to a liquid (0 degrees C for water) |
| condensation | when a substance changes from a gas to a liquid |
| density | the amount of mass in a known volume of an object or substance |
| evaporation | when a substance changes from a liquid to a gas |
| gas | particles are far apart and move rapidly |
| liquid | particles are spread out and move some |
| mass | the measurement of the amount of matter in the object |
| matter | anything that has mass and takes up space |
| physical property | a characteristic of matter that can be observed and measured without changing the composition of matter |
| solid | particles are close together and vibrate |
| taste | a physical property detected with the tongue |
| volume | a measurement of the amount of space an object occupies |
| freezing point | the temperature at which a liquid changes to a solid (0 degree C for water) |
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