| A | B |
| matter | everything around you |
| property | quality of matter |
| mass | amount of matter in an object |
| solid | all matter that has its own shape |
| centimeter | unit used to measure length |
| liquid | matter that does not have a shape of its own |
| milliliter | unit used to measure the volume of a liquid |
| gas | matter that always fills all the space inside a container |
| mixture | combination of two or more things that can be seperated |
| reversible change | something that can be changed back like ice melting into water |
| irreversible change | a change that can't be reversed like cooking an egg or adding heat |