| A | B |
|---|
| matter | anything that has mass and takes up space |
| energy | the ability to do work or cause change |
| substance | a single kind of matter that has distinct physical and chemical properties |
| physical property | characteristic of a substance that can be observed without changing the substance into something else |
| chemical property | a characteristic that is observed when a substance interacts with another substance |
| element | a substance that cannot be broken down into any other substances by chemical or physical means |
| compound | a substance made of two or more elements chemically combined in a set ratio, or proportion |
| mixture | made from two or more substances - elements, compounds or both – that are in the same place, but are not chemically combined |
| physical change | A change that alters the form or appearance of a material but does not make the material into another substance |
| states of matter | solid, liquid and gas |
| chemical change | a change in matter that produces new substances |
| weight | the measure of the force of gravity on an object |
| mass | measurement of how much matter it contains |
| volume | the amount of space that matter occupies |
| density | the amount of matter in a given space; mass per unit volume. |
