| A | B |
| solid, liquid, gas, plasma | 4 phases of matter |
| solid | definite shape and volume |
| amorphous | solids that lose shape under certain conditions |
| glass, wax, tar | examples of amorphous solids |
| crystals | solids arranged in a regular repeating pattern |
| liquid | no definite shape but a definite volume |
| viscosity | resistance of liquid to flow |
| gas | no definite shape or volume |
| Boyles law | volume of a mixed amount of gas varies inversely with the pressure of the gas. Ex. if pressure increases, volume decreases |
| Charle's law | law of gasses - if volume increases, temperature increases |
| melting | solid to liquid |
| melting point | temperature at which a solid changes to liquid |
| freezing | liquid to a solid |
| freezing point | temperature at which a liquid changes to a solid |
| vaporization | liquid to a gas |
| evaporation | vaporization taking place at surface of a liquid |
| condensation | gas to a liquid |
| sublimation | solid to a gas |
| chemical property | property that describes how a substance changes into a new substance |
| flammability | chemical property that describes the ability to burn |
| physical | color, shape, hardness, and density are all examples of _________ properties |
| plasma | high energy phase of matter not naturally found on Earth, sun contains this |
| loss or gain of heat energy | phase changes are accompanied by 2 things |
| boiling | vaporization throughout a liquid |
| boiling point | related to the air pressure above the liquid |
| chemical reaction | another name for a chemical change |
| inverse | one factor increases while the other decreases |
| deposition | gas to a solid |
| vaporization | Is vaporization or evaporation considered a phase change? |
| stability | chemical property that descrbes the ability of a substance to ot change |
| malleability | physical propert that describes how well an object can be hammered into a sheet. |
| lost | Energy is ______ when going from a liquid to a solid |
| gas laws | describes the behavior of gases |
| pressure, volume, temperature | gas laws involve changes in what 3 things |