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Weathering

Weathering. Weathering - is the wearing down of rocks on the Earth’s surface by wind, water, and ice. Weathering can be caused by water seeping into cracks in rocks, freezing, expanding, causing the cracks to get bigger, and over time breaking the rock apart.

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Weathering

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  1. Weathering • Weathering- is the wearing down of rocks on the Earth’s surface by wind, water, and ice. • Weathering can be caused by water seeping into cracks in rocks, freezing, expanding, causing the cracks to get bigger, and over time breaking the rock apart. • Rain and running water also help to break down rocks into smaller particles. • Wind carrying sand and other particles can also wear down rocks over time.

  2. Erosion • Erosion- is the process in which rock, soil, and sand are broken down and moved away. Wind- can wear down rock and blow away sand and soil. Water- Streams and rivers break up rocks and soil and carry them to a different location. Ice- Glaciers cause erosion by scraping the ground along their paths and carrying away the sediments.

  3. Deposition • Deposition- is the processes by which rocks, soil, and other sediment are deposited in new places. Dune- Hill of sand on beaches and in dry deserts formed by blowing sand. Beach- Area of shoreline where waves have deposited sand and sediment from the ocean. Deltas- Area formed when a river’s current slows down as at flows into an ocean, sea, or lake and drops the sediment it is carrying. Flood Plain- Area built when a river, creek, or stream floods and leaves behind mud and sediment. Glacial Moraine- Area formed by gravel, rocks, sand soil scraped, carried and left behind when a glacier retreats.

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