| A | B |
| Charle's Law | The way a balloon decreases in volume when the temperature is decreased illustrates |
| condensation | The drops of water that appear on the outside of a glass of cold juice on a warm day are an example of |
| endothermic | a change in which energy is gained by a substance as it changes state |
| viscosity | One property of liquids is ____________________. |
| volume | The amount of space that an object takes up is its |
| solid | The particles of a crystalline ____________________ have a three-dimensional pattern. |
| liquid | A state of matter with fixed volume, but not a fixed shape, is a |
| gas | The particles of a ____________________ are far apart. |
| exothermic | a change in which energy is removed from the substance as it changes state |
| freezing | the change of state from a liquid to a solid |
| sublimation | the change of state from a solid directly to a gas |
| boiling | the change of a liquid to a vapor throughout the liquid |
| evaporation | the change of state from a liquid to a gas |
| melting | the change of state from a solid to a liquid |
| change of state | the change of a substance from one physical form to another |
| endothermic | In a(n) ____________________ change, energy is added to a substance. |
| temperature | It can be determined by measuring the speed of molecules. |
| states of matter | Ice, water, and steam are all examples. |
| liquid | This is a state of matter in which atoms and molecules are close together but can slide past each other. |
| gas | It has no definite volume. |
| pressure | It increases when the amount of force per unit area increases. |
| surface tension | This force acts on the particles of milk at the surface of a glass of milk. |
| volume | This can only be measured in three dimensions. |