| A | B |
|---|
| Matter | anything that has mass and volume. |
| Pure Substance | an element or compound. A collection of substances that can't be broken apart using physical processes. |
| Mixture | either heterogeneous or homogeneous. A collection of substances that can be separated by physical means. |
| Heterogeneous Mixture | a type of mixture that is uneven and difficult to mix together. |
| Homogeneous Mixture | a type of mixture that is evenly distributed and appears well-mixed. |
| Solid | a state of matter that has a fixed shape and definite volume. |
| Liquid | a state of matter that has a variable shape and definite volume. |
| Gas | a state of matter that will expand to completely fill the container. It's shape and volume change to fit the container. |
| Metal | a classification of matter that describes a substance that is a good conductor, hard, shiny, malleable, and ductile. |
| Metalloid / Semiconductor | a classification of matter that has properties of both metals and nonmetals |
| Nonmetal | a classification of matter that describes a substance that is a poor conductor, soft, dull appearance, and brittle. |
| Ductile | a physical property where a metal is drawn into a wire. |
| Malleable | a physical property where a metal can be pounded into a flat sheet. |
| Corrosive | a chemical property where a metal will oxidize and form rust. |
| Flammable | a chemical property where a substance will ignite and burn. |
| Toxic | a chemical property where a substance is dangerous to humans. |
| Melting Point | the temperature at which a solid turns to a liquid. For water, this is 0 C or 32 F. |
| Boiling Point | the temperature at which a liquid turns to a gas. For water, this is 100 C or 212 F. |
| Evaporation | a phase change that occurs when liquid changes to gas. |
| Condensation | a phase change that occurs when gas changes to liquid. |
| Sublimation | a phase change that occurs when a solid changes directly to a gas. |
| Deposition | a phase change that occurs when a gas changes directly to a solid. |
| Freezing | a phase change that occurs when a liquid changes to a solid. |
| Melting | a phase change that occurs when a solid changes to a liquid. |
