| A | B |
|---|
| Igneous Rock | Rock that came from the cooling and crystallization of molten material |
| Sedimentary Rock | Rock formed from the remains of plants and animals that are compacted and cemented together |
| Metamorphic | When an already existing rock has its texture, structure and composition changed by heat and pressure |
| Extrusive Rock | Rock formed from the cooling of lava at Earth's surface |
| Intrusive Rock | Rock formed from the cooling of magma within Earth's lithosphere |
| Clastic Rock | Rock formed from particles of weathered rock |
| Inorganic | A substance that cannot come from something once living. |
| Organic Rock | A substance that is formed from a once living thing |
| Chemical Rock | Rock formed from dissolved elements in water that settle out of solution |
| Rock Cycle | A series of processes that slowly change rocks from one kind to another |
| Crystallization | The process by which atoms arrange to form a material with a crystal structure |
| Weathering | The chemical and physical processes that break down rock at Earth's surface |
