| A | B |
| characteristic property | This is an attribute that can be used to help identify a substance. Density is an example of this. |
| density | This is the mass of a known volume of a substance. |
| grams per cubic centimeter | This is the label for a density calculation. |
| mass divided by volume | This is how we calculate the density of a substance. |
| boiling point | Temperature at which a liquid turns into a gas |
| evaporate | To change from a liquid to a gas at or below the boiling point |
| immiscible | A term used to describe liquids that are unable to dissolve in one another; describes liquids that will separate and form layers instead of mixing |
| phase change | When matter changes form or state |
| melting point | Temperature at which a solid turns into a liquid; Melting point temperature is the same as the substance's freezing point. |
| condensation | The process by which a gas turns into a liquid |
| Law of conservation of mass | Total mass of matter remains the same regardless of any changes in phase or chemical reaction |
| freeze | The change in state in which a liquid turns into a solid. |
| mixture | Two or more materials blended together. The materials ARE NOT chemically combined so they keep their own characteristic properties. |
| pure Substance | A single substance with its own set of characteristic properties. It can be an element or a compound. |
| chemical reaction | A change in matter that involves the formation of new substances that have different characteristic properties than the original substances. |
| reactants | The starting substances in a chemical reaction |
| products | The ending substances in a chemical reaction |
| phase | Solids, liquids and gases are the three phases or states of matter. |