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 |