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unit 7 WED

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