| A | B |
|---|
| mineral | made up of inorganic (non-living) material found in nature which has only one element |
| rock | made up of two or more minerals |
| sedimentary rock | rocks formed by pressure |
| metamorphic rock | rocks formed by heat and pressure |
| igneous rock | rocks formed by heat |
| geology | study of the Earth |
| properties of minerals | hardness, color, luster, cleavage, streak |
| Mohs scale | scale used to determine the hardness of a mineral |
| metallic | shiny |
| non-metallic | dull |
| cleavage | breaks apart |
| streak | leaves a powder |
| crystal | natural shape of some minerals |
| color | not a reliable test that only requires your eyes |
| luster | how light is reflected from a mineral's surface |
| hardness | scratching one mineral with another to see which is harder |
| magma | melted rock underneath Earth's crust |
| lava | melted rock on Earth's surface |
