| A | B |
|---|
| states of matter | the physical forms in which a substance can exist; states include solid, liquid, gas, and plasma |
| solid | the state inwhich matter has a definite shape and volume |
| liquid | the state in which matter takes the shape of its container and has a definte volume |
| gas | the state in which matter changes in both shape and volume |
| pressure | the amount of force exerted on a given area |
| Boyle's law | the law that states that for a fixed about of gas at a constant temperature, the volume of a gas increases as its pressure decreases |
| Charles's law | the law that states that for a fixed amount of gas at a constant pressure, that volume of a gas increases as its temperature increases |
| Plasma | that state of matter that does not have a definite shape or volume and whose particles have broken apart |
| change of state | the conversion of a substance from one physical from to another |
| melting | the change of state from a solid to a liquid |
| freezing | the change of state from a liquid to a solid |
| vaporization | the change of state from a liquid to a gas; includes boiling and evaporation |
| boiling | vaporization that occures at the surface of a liquid below its boiling point |
| condensation | the change of state from a gas to a liquid |
| sublimation | the change of state from a solid directly into a gas |
