| A | B |
|---|
| chemical change | The change of substances to different substances |
| chemical property | A characteristic of a substance that indicates whether it can undergo a specific chemical change. |
| cocagulatoin | Process that destroys colloid structure; can be used to reduce a colloidal form of air pollution. |
| colloid | A heterogeneous mixture containing tiny particles that never settle out; for example, milk and gelatin. |
| compound | Substance made of the combined atoms of two or more elements. |
| element | Substance in which all the atoms in a sample are alike. |
| heterogeneous mixture | A mixture in which different parts can be easily distinguished |
| homogeneous mixture | A mixture in which different materials are blended evenly so that the mixture is the same throughout; also called a solution. |
| law of conservation of mass | A law stating that matter is neither created nor destroyed during a chemical change. |
| physical change | A change in the size, shape, color or state of matter. |
| physical property | Any characteristic of a material that can be observed without changing the identity of the material itself. |
| solution | A homogeneous mixture containing particles so tiny that they cannot be seen even with a microscope; particles in a solution don't settle and don't scatter light. |
| substance | Matter that is an element or a compound. |
| suspension | A heterogeneous mixture containing a liquid in which larger particles eventually settle out. |
| Tyndall effect | The scattering of light by particles in a mixture; seen in all colloids. |
