| Term | Definition |
|---|
| Solid | Has a definite shape and a definite volume; particles are unable to overcome the attraction between them; particles vibrate in place |
| crystalline | particles in a solid that have a very orderly arrangement |
| amorphous | particles in a solid that do not have an orderly arrangement |
| liquid | Does not have a definite shape, has a definite volume; particles are able to overcome some of the attraction between them; particles slide past one another |
| surface tension | the force acting on the particles at the surface of a liquid that causes the liquid to form spherical drops |
| viscosity | a liquid's resistance to flow |
| gas | does not have a definite shape, does not have a definite volume; particles are able to overcome nearly all the attraction between them; particles move independently of one another |
| pressure | the amount of force exerted on a given area |
| Boyle's Law | for a fixed amount of gas at a constant temperature, the volume of a gas increases as its pressure decreases |
| Charles's Law | that for a fixed amount of gas at a constant pressure, the volume of the gas decreases as its temperature decreases |
| Plasma | the state of matter that does not have a definite shape and does not have a definite volume; conduct electric currents |
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