| Term | Definition |
|---|---|
| Solid | matter that has a definite shape and a definite volume |
| Liquid | matter with a definite volume but no definite shape |
| Viscosity | a measurement of a liquid's resistance to flow |
| Surface Tension | the uneven forces acting on the particles on the surface of a liquid |
| Gas | matter that has no definite volume and no definite shape |
| Vapor | the gas state of a substance that is normally a solid or a liquid at room temperature |
| Kinetic Energy | the energy an object has due to its motion |
| Temperature | a measure of the average kinetic energy of all particles in an object |
| Thermal Energy | the 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 | change of state from a solid to a gas without going through the liquid state |
| Deposition | change of state of a gas to a solid without going through the liquid state |
