| A | B |
|---|
| matter that has a uniform and unchanging composition | substance |
| a characteristic that can be observed without changing the sample's composition | physical property |
| a physical property that is dependent on the amount of substance | extensive property |
| a physical property that does not depend on the amount of substance | intensive property |
| the ability of a substance to combine with or change into another substance | chemical property |
| the physical forms of matter | states of matter |
| matter with a definite shape and volume | solid |
| matter with a definite volume that takes the shape of its container | liquid |
| matter that takes the shape and volume of its container | gas |
| the gaseous state of a substance that is normally a solid or liquid at room temperature | vapor |
