| A | B |
|---|
| solid | Definite shape and definite volume. |
| liquid | Definte volume but not a definite shape. |
| gas | No definite shape nor definite volume. |
| plasma | High energy phase of matter in which atoms have been stripped of their electrons. |
| kinetic energy | The energy an object has due to its motion. |
| pressure | The result of a force distributed over an area. |
| temperature | A measure of heat (motion). |
| volume | Amount of space taken up by an object. |
| absolute zero | Temperature at which all motion stops. |
| boyle's law | Temperature and number of atoms are constant. As the pressure increases the volume decreases and vice versa. Inverse porportion. |
| charles's law | Pressure and the number of atoms are kept constant. If the temperature increases then the volume will increase. Direct proportion. |
| phase change | Physical change when a substance changes from one state of matter to another. |
| endothermic | A change in which energy is absorbed. |
| exothermic | A change in which energy is released. |
| vaporization | A phase change in which a substance changes from a liquid into a gas. |
| condensation | A phase change in which a substance changes from a gas to a liquid. |
| sublimation | A phase change in which a substance changes from a solid to a gas. |
| deposition | A phase change in which a substance changes from a gas to a solid. |
