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unit 7 WED
Question | Answer |
---|---|
weathering | breaking down of rock into smaller pieces |
sediments | small pieces of rock |
physical and chemical | two main types of weathering |
agents of weathering | wind, water, ice wedging, humans, plant roots |
erosion | process of moving sediment from one place to another |
glaciers | these cause U shaped valleys |
rivers | these cause V shaped valleys |
agents of erosion | wind, flowing water, glaciers, gravity |
gravity | causes sediments to fall to earths surface causing landslides, rockslides, and mudslides |
deposition | the dropping or settling of eroded sediments |
moraines | glaciers drop off sediments that create hills at the mouths of rivers called this |
delta | fan shaped feature at the mouth of a river created by deposition |
sedimentary rock | type of rock created by layers of sediment that are pressed together |
compaction | pressure or "squishing" |
cementation | the binding or gluing together of particles |
minerals | act like glue to hold sedimentary rock together |