| A | B |
|---|
| matter | anything that has mass and takes up space |
| chemistry | study of how matter changes |
| substance | single kind of matter |
| physical property | characteristic that can be observed without changing it into another substance |
| chemical property | characteristic of matter that describes its ability to change into a different substance |
| element | substance that cannot be broken down into any other substance |
| atom | basic particle from which all elements are made |
| molecule | group of 2 or more atoms held together by chemical bonds |
| chemical bond | attraction between atoms |
| compound | substance made of 2 or more elements that are chemically bonded |
| chemical formula | shows the elements in the compound and the ratio of atoms |
| mixture | 2 or more stubstances that are together but not bonded chemically |
| weight | measure of the force of gravity on an object |
| mass | amount of matter in an object |
| volume | amount of space that matter occupies |
| density | measure of mass of a material in a given volume |
| physical change | difference in a substance that does not turn it into a new substance |
| chemcial change | substance transform into another substance, chemical reaction |
| law of conservation of mass | matter is not created or destroyed in a chemical or physcial change |
| temperature | how hot or cold something is |
