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Matter & Minerals
Words for Unit Study
| Term | Definition |
|---|---|
| Brittle | Breaks easily when pressure is applied |
| Magnetism | ability to be attracted by a magnet |
| Density | the amount of matter in a given space |
| Hardness | ability of a mineral to resist scratching |
| Luster | how the surface of a mineral appears when it reflects light, shiny or dull |
| Mass | the amount of matter in something |
| Streak | the color of a mineral seen when rubbed on a streak plate |
| Volume | the amounts of space that a substance or object occupies |
| Physical Properties | Attributes of matter that can be observed and measured |
| Conductivity | Ability to conduct electrical current |
| Ductility | Ability to be stretched into a wire without breaking |
| Malleability | Ability to be formed or shaped under pressure such as metals hammered or rolled into thin sheets |
| Metalloids | Substances that have properties of both metals and nonmetals |
| Metals | Substances that have the physical properties of luster, conductivity, and malleability and may appear in all three states of matter |
| Nonmetals | Substances that have the physical properties of being dull, insulators, and brittle and may appear in all three states of matter |