| WORDS TO KNOW |
DEFINITIONS |
| Boiling |
The process in which a liquid turns to a gas, at a constant temperature, and can happen at any location within the liquid |
| Boiling Point |
The temperature at which a liquid turns to a gas at any location throughout the liquid |
| Chemical change |
A change in the nature of a material in which new substances are formed |
| Chemical properties |
Those properties of a substance that can be determined only by the formation of new materials |
| Condensation |
The process in which a gas turns into a liquid |
| Deposition |
The process by which a gas becomes a solid without becoming a liquid in between |
| Evaporation |
The process in which a liquid turns to a gas, but only at the surface of the liquid |
| Freezing |
the process in which a liquid turns into a solid |
| Gas |
A material without a fixed volume and without a fixed shape |
| Liquid |
A material with a fixed volume but without a fixed shape |
| Melting |
The process by which a solid turns into a liquid |
| Melting point |
The temperature at which a solid turns into a liquid |
| Physical change |
When a material is changed in a manner such that no new substances are formed |
| Physical properties |
Those properties of a substance that can be determined without the formation of new materials |
| Solid |
A material with a fixed shape and volume |
| Sublimation |
The process by which a solid changes to a gas without becoming a liquid in between |
| Freezing point |
The temperature at which a liquid turns into a solid |