canyon, Deep, narrow, and steep-sided valley carved by the erosion of water over a long period of time., agent, A cause of change, weathering, Breaking down rock into soil, sand, and other tiny pieces, erosion, The carrying away of the Earth’s surface by water, wind, or ice, deposition, Dropping off or leaving sediment in a new location, landform, Naturally occurring features on Earth's surface that result in weathering, erosion, and deposition., delta, Area where a river flows into a body of water and sediments accumulate, forming a triangular-shaped landform., sand dune, Naturally occurring landform composed of wind-blown sand.

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