| Term | Definition |
|---|---|
| solid | is matter that has a definite shape and volume |
| liquid | is matter with a definite volume but no definite shape |
| viscosity | a measurement of a liquid's resistance to flow |
| surface tension | uneven forces acting on the particles on the surface of a liquid |
| gas | matter that has no definite volume and no definite shape |
| vapor | gas state of a substance that is normally a solid or a liquid at room temperature |
| kinetic energy | energy an object has due to its motion |
| temperature | measure of the average kinetic energy of all particles in an object |
| thermal energy | total potential and kinetic energies of an object |
| vaporization | the change in state of a liquid into a gas |
| evaporation | vaporization that occurs only at the surface of a liquid |
| condensation | change of state from a gas to a liquid |
| sublimation | the change of state from a solid to a gas without going through the liquid state |
| deposition | the change of state of a gas to a solid without going through the liquid state |
