| A | B |
|---|
| substance | matter that is either an element or a compound |
| element | substance in which all the atoms in the sample are alike |
| compound | substance that is made of combined atoms of two or more combined elements |
| mixture | materials made of elements or compounds that are stirred together but not combined chemcially |
| heterogeneous mixture | mixture in which the different materials can be easily distinguished |
| colloid | heterogenous mixture that never settles; particles are large enough to scatter light |
| Tyndall effect | the scattering of light by the large particles suspended in a colloid |
| suspension | heterogeneous mixture containing liquid in which visiable particles settle out |
| homogeneous mixture | material in which two or more substances are uniformly spread out |
| solution | mixture in which the particles are so small that they cannot be seen and remain evenly mixed |
