| A | B |
|---|
| matter | Anything that has mass and takes up space |
| states of matter | Basic forms in which matter exists including solid, liquid, and gas |
| property | A characteristic that describes matter. |
| physical property | A characteristic that can be observed without changing one kind of matter into another kind of matter. |
| chemical property | A characteristic that describes how one kind of matter changes into another kind of matter. |
| element | A substance that cannot be changed or separated into other kinds of substances. |
| atom | The smallest particle of an element that has the characterisitcs of that element. |
| nucleus | The center of an atom which is made up of protons and neutrons. |
| compound | A substance formed when the atoms of two or more elements join together chemically. |
| mixture | Two or more elements or compounds mixed together,but not joined chemically. |
