| A | B |
| Matter | Anything that has volume and mass |
| Atom | the basic pariticle of matter from which all matter is constructed |
| Molecules | Particles formed when 2 or more atoms bond together |
| Anions | Negatively charged atoms, gained electrons |
| Cations | Positively charged atoms, lose electrons |
| Classify | To organize in familiar patterns |
| Pure substances | Matter containing only 1 kind of atom or a fixed ratio of different atoms |
| Mixtures | A combination of 2 or more pure substances |
| Physical Properties | Any feature that can be observed or measured without altering the kind of matter |
| Chemical Properties | how a substance changes in the presence of another substance |
| Element | Nickel, Helium, Nitrogen |
| Compound | Salt, Water, Carbon dioxide |
| Homogeneous mixture | Gold wedding band, stainless steel alloy, chocolate milk |
| Heterogeneous mixture | homemade beef stew, concrete, rocky road ice cream |