Minerals, Rocks, Fossils
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Created by:
sjlstreete on September 22, 2010
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10 terms
Terms | Definitions |
|---|---|
 mineral | an object that is solid, is formed in nature, and has never been alive |
| rock | a solid made of minerals |
| crust | the solid outside layer of the Earth |
| mantle | the middle layer of the Earth |
| core | the center of the Earth |
| igneous rock | a rock that was once melted rock, but has cooled and hardened |
| sedimentary rock | a rock formed from a material that has settled into layers and been squeezed until it hardens into rock |
| metamorphic rock | a rock that has been changed by heat and pressure |
| rock cycle | the process in which one type of rock changes into another type of rock |
| fossil | something that has lasted from a living thing that died long ago |
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