| A | B |
|---|
| matter | anything that has mass and takes up space |
| element | matter that cannot be broken down into other substances |
| compound | matter that is made up of two or more substances that are chemically combined |
| mixture | matter that is made up of two or more substances that are not chemically combined |
| atoms | extremely small particles that make up all matter |
| Democritus | the first person to think matter was made up of atoms |
| Dalton | the first person to develop a modern theory about atoms |
| physical change | a change that does not affect the type of matter you have |
| chemcial change | a change that creates a new type of matter |
