- Matter: Anything that takes up space and has mass.
- Property: Any characteristic of matter you can observe.
- Physical change: A change in way matter looks, but doesn’t change the matter.
- Chemical change: A change that forms a different kind of matter.
- Volume: A measure of how much space matter takes up.
- Mass: The amount of matter in an object
- Mixture: a substance made by mixing other substances together.


