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How Rocks Form

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Term
Definition
Crust   Is the outer areas of land.  
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Rock   Is a solid material made up of one or more minerals.  
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Mineral   Is a solid material found in Earth's crust that has a definite chemical makeup.  
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Mantle   Is a thick layer of rock between the crust and the core.  
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Core   Is a dense ball with a liquid outer part and a solid inner part.  
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Igneous Rock   Is rock that forms when melted, or molten, rock that forms when melted, or molten, rock from Earth's mantle cools and hardens.  
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Sedimentary Rock   Is rock that forms when sand, particles of rock, bits of soil, and remains of once-living things harden.  
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Sediment   Breaking rock into sediment is called weathering.  
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Metamorphic Rock   Is new rock that forms when existing rocks are changes by heat, pressure, or chemicals beneath Earth's surface.  
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Rock Cycle   Scientist call the continuous series of changes that rocks go through the rock cycle.  
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Created by: gdrake
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