| A | B |
|---|
| element | a substance that cannot be broken down |
| compound | made of two or more elements, combined in a specific ratio |
| mixture | most matter in your environemnt occurs as parts of this |
| physical change | an example is water vapor changing to liquid again as rain |
| chemical change | changes in matter that produce new substances |
| properties | chemical reactions can be detected by observing changes in these |
| precipitate | solid that forms from solution during a chemical reaction |
| new materials | key characteristic of a chemical reaction is production of these |
