| A | B |
|---|
| Pure Substance | An element or compound |
| Element | Made out of only one kind of atom |
| Atom | The smallest unit of an element that retains the properties of the element |
| Compound | A combination of elements in a fixed ratio |
| Heterogenous Mixture | A mixture where the parts can be easily distinguished |
| Homogenous Mixture | A mixture where the parts can not be easily distinguished |
| Solution | A homogenous mixture with small particles that do not scatter light |
| Suspension | A heterogenous mixture whose particles will scatter light and settle out over time |
| Colloid | A heterogenous mixture whose particles will not settle out over time and that light will scatter in |
| Physical Property | A characteristic of the material that can be observed without changing the composition of the material |
| Viscosity | A liquid's resistance to flow |
| Conductivity | A material's ability to allow electricity to pass through it |
| Malleability | The ability of a solid to be hammered with out shatteing |
| Melting Point | The temperature at which a material goes from a solid to a liquid |
| Boiling Point | The temperature a which a liquid forms a gas |
| Filtration | The process that seperates particles based on their size |
| Distillation | The process that seperates substances in a solution based on boiling point |
| Physical Changes | A change in the physical property of a material, not its chemical composition |
| Chemical Property | any propery that produces a change in the composition of matter |
| Flammability | A materials ability to burn in the presence of oxygen |
| Reactivity | How well a substance can chemically combine with other substances |
| Chemical Change | Change occuring when a substnce reacts with another substance to form one or more new substances |
| Precipitate | A solid that forms from a liquid mixture |
