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Rocks_Leibold
| Question | Answer |
|---|---|
| Lava | When magma reaches earths surface and flows from volcanoes |
| Igneous Rock | The type of rock that is formed when hot magma cools and hardens. |
| Granitic | A type of Igneous rock that is light colored and has a lower density than basaltic Igneous rocks |
| Intrusive | Igneous rocks that form below the surface are called intrusive igneous rocks |
| Metamorphic Rocks | Rocks that have changed because of changes in temperature and pressure or the presence of hot watery fluids |
| Foliated | A type of texture of which the mineral grains line up in parallel layers |
| Basaltic | A type of igneous rock that is dense and is dark colored |
| Nonfoliated | A type of texture of which the mineral grains grow and rearrange, but they do not form layers |
| Extrusive | A type of igneous rock that is formed as lava cools on earths surface |
| Cementation | occurs when minerals such as quartz, calcite, and hematite are deposited between the places of sediment |
| Sedimentary Rock | A type of rock taht forms when sediments are pressed and cemented together, or when minerals form from solutions |
| Compaction | When small sediments stick together and form solid rock |
| Sediments | Loose materials such as rock fragments, mineral grains, and bits of shell that have been moved by wind, water, ice, or gravity |
| Rock | A mixture of minerals such as rock fragments, volcanic glass, organic matter, or other natural materials |
| Rock Cycle | A model that shows how rocks slowly change through time and illustrates the processes that slowly change rocks |