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TOAT Hawaiian Island
| Term | Definition |
|---|---|
| rock | A naturally occurring solid composed of one or more minerals. |
| sedimentary | A rock formed from layers of sediment or organic matter (like shells) that get compacted and cemented together over time. Can contain fossils |
| igneous | A rock formed from the cooling and solidification of molten rock (magma below ground or lava on the surface). |
| metamorphic | Rocks transformed by intense heat, pressure, and/or chemical fluids deep within the Earth, changing their mineral composition and texture without melting them. |
| lava | Molten rock that has moved above Earth's surface |
| magma | Molten rock beneath the earth's surface |
| extrusive | Igneous rock that solidified quickly at Earth's surface. Has small or nonexistent crystals with vesicles. |
| basalt | A dark, fine grained igneous rock that forms from rapidly cooled lava at or near Earth's surface. Most common |
| granite | A usually light colored igneous rock that is found in continental crust |
| intrusive | Igneous rock that contains large crystals and forms when magma cools slowly beneath Earth's surface. |
| density | Mass per unit volume of a substance. |
| oceanic | thinner, more dense part of the crust |
| continental | thicker, less dense part of the crust |
Created by:
MrsShwood
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