| A | B |
|---|
| states of matter | 60_the physical forms in which a substance can exist |
| solid | 61_ matter that has a definate shape and volume |
| crystalline | 61_solids haivng a very orderly, three-dimensional arrangement of atoms or molecules (patterns) |
| amorphous | solids with atoms and molecules arranged in no particular order |
| liquid | 62_matter with a definate volume, but no definate shape |
| gas | 63_matter with no definate shape or volume |
| pressure | 64_the amount of force exerted on a given area |
| Boyle's Law | 65_for a fixed amount of gas at a constant temperature, the volume of the gas increases as the pressure acting upon it decreases |
| Charle's Law | 66_for a fixed amount of gas at a constant pressure, the volume will increase as its temperature increases. |
| plasma | 67_the state of matter that does not have a definate shape of volume and whose particles have broken apart |
| change of state | 68_the conversion of a substance from one physical form to another (Physical change) |
| melting | 69_the change of state from a solid to a liquid |
| absorbing energy | 69_melting is endothermic; particle motion is increased so that the attractions between particles no longer hold them in place |
| freezing | 69_the change of state from a liquid to a solid (exothermic) |
| removing energy | 69_freezing is exothermic; particle motion decreases as energy is removed and the attractions between particles begin to hold them in place |
| vaporization | 70_The change of state from a liquid to a gas (endothermic) |
| boiling | 70_vaporization that occurs throughout a liquid (endothermic) |
| evaporation | 70_vaporization that occurs at the surface of a liquid that is below its boiling point (endothermic) |
| condensation | 71_the change of state from a gas to a liquid (your breath in the winter) (exothermic) |
| sublimation | 72_the change of state from a solid directly to a gas (skipping the liquid state) (endothermic) ex, when dry ice evaporates directly from the solid block |
| deposition | the change of state from a gas directly to a solid (skipping the liquid state) (exothermic) ex, when water vapor(gas) forms ice crystals in clouds |
