Earth's features created by Weathering, Erosion, &Deposition
Weathering, Erosion, and Deposition
Weathering is the process of breaking rocks down into smaller pieces. Weathering makes landforms smaller or deeper. Weathering is responsible for creating canyons and valleys.
Erosion is the process of moving sediments to a new place.
Deposition is the process of dropping sediments down. Deposition makes landforms larger. Deposition is responsible for making sand dunes and canyons.
A canyon is a deep valley with steep walls that is created when a river weathers away the sediments below the river. Over time the canyon will get deeper and deeper.
A delta is a triangle shaped landform that is created when a river meets an ocean and deposits, or drops, the sediments it is carrying. Deltas will continue to get larger and spread out over time.
Sand dunes are large piles of sand that are created by wind. Wind moves the sand from one place and deposits it into a new spot, building the dune. Dunes will continue to change shape over time.