| A | B |
|---|
| chemical property | A characteristic of matter that can be observed only when matter is changed into a new kind of matter. |
| physical property | A characteristic of matter that can be measured or observed without changing matter into something new. |
| metric system | A system of measurement based on multiples of 10. |
| volume | The amount of space that matter takes up. |
| matter | Anything that has mass and takes up space. |
| mass | The amount of matter in an object. |
| density | The amount of matter in a given space, or a given volume. |
| atom | The smallest particle of matter that has the properties of that matter. |
| molecule | A single particle of matter made up of two or more atoms joined together. |
| states of matter | The three forms that matter usually takes: solid, liquid and gas. |
| weight | The measure of the pull of gravity on an object. |
