| A | B |
|---|
| Erosion processes | running water |
| Metamorphic | extreme heat and pressure |
| Igneous | fire formed |
| Lava | magma on the surface |
| Magma | molten rock underground |
| Extrusive | cools outside the earth |
| Intrusive | cools inside the earth |
| Sedimentary | made from pieces of rock cemented together |
| Changed | metamorphic |
| Strata | layered sedimentary rock |
| Obsidian | black igneous rock |
| Foliated | metamorphic showing banding |
| Organic | once living |
| Inorganic | never been living |
| Clastic | sedimentary rock formed from pieces |
| Large crystals | form slowly inside the earth |
| Small crystals | form quickly outside the earth |
| Granite | igneous rock used in buildings |
| Limestone | sedimentary rock sometimes having fossila |
| Mafic | dark colored igneous rock |
| Felsic | light colored igneous rock |
