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bbms heinz weatherin

bbms heinz weathering, erosion and deposition

QuestionAnswer
what is weathering? breaking rocks
what is erosion? moving rocks and sediment
what is deposition? put sediment in a new place
explain chemical weathering. when chemicals break rocks
give an example of chemical weathering. carbonic acid, acid rain, rust, oxidation
explain physical (mechanical) weathering. when motions break rocks
give an example of physical (mechanical) weathering. abrasion, plucking, ice wedging
what is abrasion? rubbing and grinding
what is plucking? when glacier pick up and break rocks
what is ice wedging? when water gets in cracks, freezes, gets bigger and cracks rock
what are the four agents of erosion? water, wind, glaciers, gravity
what causes mass movement? gravity
give four examples of mass movement landslide, mudflow, slump, creep
what happens when the agents of erosion deposit sediment? landforms are created
what landforms are created by water? beach, spit, stalactite, stalagmite, delta, alluvial fan
what landforms are created by glacier? till, kettle, moraine
what landforms are created by wind? sand dune, loess deposit
how do rocks become rounded? the edges are broken off by the agents of erosion
which agent of erosion is most likely responsible for making rocks round? water
what is runoff? the water from rain and snow melt that runs off the land into rivers and streams
what is in runoff? sediment
which agent of erosion can cause fence posts to tilt? gravity creep
gravity is a force that does what? pulls stuff down
what type of rock is made from cooled lava or cooled magma? igneous
what type of rock is made from bits and pieces of other rocks? sedimentary
what type of rocks are made from rocks that are changed by heat and pressure? metamorphic
what is compaction? squeezing
what is cementation? gluing
what rock type is formed from weathering, erosion, deposition, compaction and cementation? sedimentary
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