| A | B |
|---|
| matter | anything that has mass and takes up space |
| chemistry | study of properties of matter andhow matter changes |
| substance | single kind of matter that is pure, always a specific make up or composition |
| physical property | characteristic of a pure substance that can be observed without changing it into another substance |
| chemical property | characteristic of a pure substance that describes its ability to change into different substances |
| element | a pure substance that can not be broken down into any other substances by a physical or chemical means |
| atom | basic particle from which all elements are made |
| chemical bond | a force attraction between two atoms |
| molecules | groups of two or more atoms held together by chemical bonds |
| compound | pure substance made of two or more elements chemically combined in a set ratio |
| chemical formula | shows the elements in a compound and the ratio of atoms |
| mixture | made of two or more substances |
| heterogeneous mixture | you can see the different parts |
| homogeneous mixture | substances that are so evenly mixed that you can't see the different parts |
| solution | an example of a homogeneous mixture where you can not see the parts |
