| A | B |
| matter | anything that has mass and takes up space |
| chemistry | is the study of the properties of matter and how matter changes |
| element | a substance that cannot be broken down into any other substances by chemical or physical means |
| atoms | tiny particles that make up elements |
| symbol | a one or two letter set of characters used to identify an element |
| compound | a substance made of two or more elements chemically combined in a specific ratio |
| formula | a combination of symbols to identify which elements are present in a compound |
| mixture | made from two or more substances that are mixed together but not chemically combined |
| physical change | a change that alters the form or appearance of a substance but does not make the material into another substance. |
| chemical change | a change in matter that produces new substances. |
| weight | a measure of the force of gravity on an object |
| mass | a measurement of the amount of matter in an object |
| volume | the amount of space that matter occupies |
| density | the measurement of how much mass is contained in a given volume |