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Topic 7, Lessons 3&4
Rocks and the Rock Cycle
Term | Definition |
---|---|
igneous 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 |