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21 Cards in this Set
- Front
- Back
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Grains
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tiny peices of rock
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mineral
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an element or compound found naturally in rocks or soil
eg. calcium |
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chemical weathering
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when rocks are broken up or dissovled by chemical reactions usually with acid rain.
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physical weathering
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when rocks are broken up by physical processes such as changes in temerature.
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biological weathering
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when rocks are broken down due to the activities of living things eg. growing plant roots can split rocks apart
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erosion
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the movement of loose and weathered rock
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sediment
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rock grains and fragments dropped on the bottom of rivers,lakes ot the sea
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transported
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the movement of rock grains and fragments by wind,water ot ice
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deposited
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when moving air,water or ice drops rock fragments or grains it has been carrying
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crystals
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peices of mineral with sharp edges
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compaction
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when layers of sediment or rock are squashed by the wait of sediment above them
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cementaion
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a process in which water is squished out of the spaces between peices of rock,leaving mineral salt behind which stick or cement the rock peices together
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crust
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the solid rocks on the surface of the earth.
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mantle
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the part of the earth below the crust
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magma
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molten rock beneith the surface of the rock
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igneos rock
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a rock formed when magma or lava cooled down and solifies
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sedimentary rock
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rock formed from layers of sediment.it is often porous and made of rounded grains
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metamorphic rock
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rocks that have been formed by changing igneos or sedimentary rocks
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particles
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the tiny peices that everything is made out of
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bonds
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forces holding particles together
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lava
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molten rock that runs out of volcanoes.
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