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Rocks for Iphones
Term | Definition |
---|---|
Igneous Rock Forms | when molten rock cools and hardens |
Metamorphic Rock Forms | when heat and pressure alter existing rock |
Sedimentary Rock is | made of sediment that has been deposited, compacted, and cemented |
Rocks | Mixture of two or more minerals |
Magma | Molten rock found beneath Earth |
Weathering | Breakdown of materials in the Earth's crust |
Erosion | Process of transporting sediment by rain, wind, or ice |
Igneous Rock Examples | Granite, obsidian, pumice |
Metamorphic Rock Examples | Gneiss, slate, marble |
Sedimentary Rock Examples | Limestone, sandstone, conglomerate |
Lava | Magma that reaches Earth's surface |
Size of Crystals Determined | By how quickly the rock cooled |
Coal is used for | Electricity |
Crushed rock is | Used for Roads |
Rock Cycle | one type of rock is changed to a new type of rock |
Extrusive Igneous Rock | Result of lava cooling quickly |