| A | B |
| element | a substance made up of only type of matter |
| atom | the smallest particle of an element that has all the properties of that element |
| mixture | two or more types of matter that are mixed together; each keeping its own chemical properties |
| filter | a tool used to separate things size |
| evaporation | the change of a liquid to a gas |
| compound | a substance made when two or more elements are joined; each losing its own properties |
| density | the amount of matter in a given space |
| property | a characteristic of something that you can observe |