Water gets into cracks of rocks and expands. The rock splits.
weathering
A river cuts through a rock forming a canyon.
erosion
Acid rain falls on a rock statue and over time dissolves parts of it.
weathering
An arch can be formed by wind hitting a rock and creating a hole.
weathering
A salt dome is a hill of salt that has formed due to marine water evaporating.
erosion
Beach waves help build up sand and pebbles onto the shore.
deposition
Moss produces a weak acid that dissolves the rock.
weathering
The flow of the river slows down and drops sediment to form a delta.
deposition
A tree grows into a rock and the rock breaks apart over time.
weathering
A glacier moraine is a build up of dirt and rock left by the glacier.
deposition
Lightning strikes and cracks rocks on a mountain.
weathering
U-shaped valleys form due to sediment moved by a glacier.
erosion
As wind slows down, it drops some of its sand, and sand dunes are formed.
deposition