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Rocks Ch. 2 vocab

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Question
Answer
Igneous Rock   When hot magma cools and hardens  
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Lava   When magma reaches Earth's surface and flows from volcanoes  
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Intrusive   Rocks that form from magma below the surface  
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Extrusive   Rocks formed as lava cools on the surface of Earth  
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Basaltic   Igneous rocks are dense, dark colored rocks  
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Granitic   Igneous rocks are light colored rocks of a lower density than basaltic rocks  
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Sediment   Loose materials such as rock fragments, mineral grains, and bits of shell that have been moved by wind, water, ice, or gravity.  
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Sedimentary rock   Sediments that are pressed and cemented together, or when minerals form from solutions  
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Compaction   Process that forms sedimentary rock when layers of sediments are compressed by the weight of the layers above them  
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Cementation   Sedimentary rock-forming process in which sediment grains are held together by natural cements that are produced when water moves through rock and soil  
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Created by: ecstiglich
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