| A | B |
|---|
| the form in which particles are arranged and move | phase of matter |
| the temperature at which a substance changes from a liquid to a gas | boiling point |
| the temperature at which a substance changes from a solid to a liquid | melting point |
| The phase of matter that has no definite shape or volume and the particles have the most motion | gas |
| The phase of matter has definite shape and volume. The particles are packed tightly and move extremely slow. | solid |
| The phase of matter that has no definite shape, but has volume. The particles are packed loosely and move slowly | liquid |
| the temperature at which a substance changes from a liquid to a solid | freezing point |
| Freezing point of water | zero degrees Celsius = 32 degrees Fahrenheit |
| water in its gas state | vapor |
| matter particles move ________ when they have more energy | faster |
| Heat is _______ | energy |
| Boiling point of water | 100 degrees Celsius = 212 degrees Fahrenheit |
| this occurs when water vapor turns into liquid | condensation |
