Igneous Rocks
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each of the black spaces below before clicking
on it to display the answer.
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| rock cycle | series of process in which rocks forms, changes from one type to another, is broken down or melted, and forms again by geologic process
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| igneous | hot rocks/fire rocks
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| igneous rock | defined by where they are formed: (Extrusive and Intrusive) and what they are made of:(Basaltic, Granitic, Andesitic)
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| Magma | molten rock below the Earth's surface
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| lava | molten rock above the Earth's surface
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| Intrusive Igneous Rock | rocks formed from magma that cool slow and have large crystals Examples: Gabbro, Diorite, Granite
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| Extrusive Igneous Rock | rocks formed from magma that cool fast and have small crystals Examples: Pumice, Obsidian, Basalt
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| basaltic | an igneous rock that is high in Fe and Mg and low in SiO2 that is dark colored and high density. Found on the ocean floor and Hawaii
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| Granitic | An Igneous rock that is high in SiO2 and low Fe and Mg that is light colored, low density, and found on the continents
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| Andesitic | An igneous rock that is high in Fe and Mg, low in SiO2, that is grey colored, medium density, and found at the Pacific Rim
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| SiO | Silicon Oxide
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| Fe | Iron
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| Mg | Magnesium
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SSC 8th LA
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