| A | B |
|---|
| matter | Anything that has mass and volume. |
| substance | matter that always has exactly the same composition; an element or compound |
| pure substance | matter that always has the exact same composition; an element or a compound. |
| suspension | Heterogeneous mixture in which particles are large enough to reflect light and to settle or be filtered out of the mixture. |
| element | Pure substance that cannot be separated into any other substances. |
| compound | Unique substance that forms when two or more elements combine chemically. |
| physical property | Property of matter that can be measured or observed without matter changing to a different substance. |
| melting | Process in which a solid changes to a liquid. |
| vaporization | Process in which a liquid boils and changes to a gas. |
| solid | State of matter that has a fixed volume and fixed shape. |
| heating curve | a graph that shows the phase changes of a substance |
| freezing | Process in which a liquid changes to a solid. |
| homogeneous mixture | a type of mixture in which the substances are so evenly distributed that it is difficult to distinguish one substance in the mixture from another |
| heterogeneous mixture | a type of mixture in which the parts of the mixture are noticeably different from one another |
| sublimation | Process in which a solid changes directly to a gas without going through the liquid state. |
| liquid | the state of matter in which a material has a definite volume but no definite shape. |
| gas | State of matter that has neither a fixed volume nor a fixed shape. |
| colloid | Homogeneous mixture in which the particles are large enough to reflect light but too small to settle or filter out of the mixture. |
| deposition | Process in which a gas changes directly to a solid without going through the liquid state. |
| chemical property | Property of matter that can be measured or observed only when matter changes to a different substance. |
| Reactivity | ability of matter to combine chemically with other substances |
| Flammability | ability of matter to burn |
| Solution | Homogeneous mixture in which the particles are too small to settle or filter out of the mixture and do not reflect light. |
