|
 Aphanitic | igneous rock with very small minerals |
| Basaltic | dark magma that contains high amounts of iron and magnesium |
| Cementation | process that forms sedimentary rock when minerals are deposited around particles and clues the pieces together |
| Clastic | sedimentary rock made of pieces of other rocks |
| Cleavage | when a mineral breaks along clean lines |
| Compaction | process that forms sedimentary rock when upper layers of sediments push down on lower layers |
| Conglomerate | sedimentary rock with large rounded sediments |
| Extrusive | igneous rock that forms above ground |
| Felsic | light colored igneous rock |
| Foliated | striped or layered appearance of metamorphic rock |
| Fracture | when a mineral breaks along an uneven surface |
| Igneous rock | formed from the cooling and crystallization of molten rock |
| Intrusive | formed below ground |
| Large | Intrusive igneous rocks have ___ minerals. |
| Lava | molten rock that is found above ground |
| Luster | the way light is reflected off the surface of a mineral |
| Mafic | dark colored igneous rock |
| Magma | molten rock that is below ground |
| Mechanical weathering | process that breaks down rock by things such as water or organisms |
| Minerals | become changed by heat and pressure in metamorphic rocks |
| Metamorphic rock | rock formed from any other rock type when they are exposed to extreme heat and pressure |
| Moh's scale | used to measure the hardness of minerals |
| Organic material | remains of living things |
| Phaneritic | igneous rocks with large minerals |
| Precipitate | settle out of a solution |
| Rock | mixture of minerals, mineraloids, glass or organic matter |
| Rock Cycle | shows the types of rocks and how they form |
| Quickly | Extrusive igneous rocks cool ___. |
| Sediment | loose materials such as rock fragments, mineral grains, and bits of plant and animal remains |
| Sedimentary rock | Formed by the cementation and compaction of sediments |
| Small | Extrusive igneous rocks have ___ minerals. |
| Vesicular | igneous rock with holes |
| Weathering | processes that break down rock |
