weathering - the breaking down of rocks and minerals by physical, chemical, or biological processes, erosion - the movement of sediment or soil from one location to another by water, wind or ice., deposition - the dropping or depositing of particles in another location, landslide - the erosion of caused by moving soil, glacier - a frozen mountain of ice that carves out U shaped valleys, delta - a fan like land feature found at the mouth of a river, butte or mesa - flat topped mountains created by wind, sand dune - created by wind that is eroded and deposited, canyon - a v-shaped valley created by running water or rivers, compaction - the pressing together of sedimentary layers, cementation - when water mixes with sediments and are hardened by crystals that form, sediments - broken pieces of rock; sand, pebbles, stones, sedimentary rock - a rock type recognized by the layers of sediment pressed over time, fossils - the hardened remains of once living organisms that are 10,000 years or older,

Changes to the Earth

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