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Addison Rocks Rock
Rocks & Minerals
Question | Answer |
---|---|
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 |
metamorphic rock | a type of rock that forms from an existing rock that is changed by heat, pressure, or chemical reactions |
magma | the molten mixture of rock-forming substances, gases, and water from the mantle |
lava | liquid magma that reaches the surface |
geologist | a scientist who studies the forces that make and shape planet Earth |
earth science | the science that focuses on planet Earth and its place in the universe |
mineral | a naturally occurring, inorganic solid that has a crystal structure and a definite chemical composition |
inorganic | not formed from living things or the remains of living things |
sediment | small, solid pieces of material that come from rocks or organisms: earth materials deposited by erosion |
erosion | the process by which water, ice, wind, or gravity moved weathered rock or soil |
weathering | the chemical and physical processes that break down rock at Earth's surface |
deposition | process in which sediment is laid down in new locations |
compaction | the process by which sediments are pressed together under their own weight |
rock cycle | a series of processes on the surface and inside Earth that slowly changes rocks from one kind to another |