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6 Topic 8
Topic 8 Minerals and Rocks in the Geosphere
| Term | Definition |
|---|---|
| seismic wave | vibrations that travel through Earth carrying the energy released during an earthquake |
| crust | the layer of rock that forms Earth's outer surface |
| mantle | the layer of hot, solid material between Earth's crust and core |
| outer core | a layer of molten iron and nickel that surrounds the inner core of Earth |
| inner core | a dense sphere of solid iron and nickel at the center of Earth |
| mineral | a naturally occurring solid that can form by inorganic processes and that has a crystal structure and a definite chemical composition |
| crystal | a solid in which the atoms are arranged in a pattern that repeats again and again |
| crystallization | the process by which atoms are arranged to form a material with a crystal structure |
| ignerous rock | a type of rock that forms from the cooling of molten rock at or below the surface |
| sedimentary rock | a type of rock that forms when particles from other rocks or the remains of plants and animals are pressed and cemented together |
| sediment | small, solid pieces of material that come from rocks or the remains of organisms; earth materials deposited by erosion |
| metamorphic rock | a type of rock that forms from an existing rock that is changed by heat, pressure, or chemical reactions |
| rock cycle | a series of processes on the surface and inside Earth that slowly changes rocks from one kind to another |
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muellershauna
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