Forms when a stream meets flat ground. It is curve shaped, having coarse sediment.

Formed when a river meets standing water. It is triangular in shape, with deposits of sediment.

A land form that is created over several years. It is formed by underwater erosion.

Crystals formed over thousands of years. Created by groundwater that contains calcium and sulfur.

Formed when erosion occurs on both sides of a cliff. The erosion eventually creates a hole in the middle of the cliff.

Formed when waves deposit sand. The sand forms the beach along a shore.

A dark brown or black coating formed from iron and manganese. Usually found in the desert. 

A hill that is formed when the wind deposits sand. Wind and sand are needed to form these dunes.

A peak that is left on top of a mountain after all sides erode. The peak is usually sharp.

A lake that is formed from massive chunks of ice, that have melted. These lakes can be found in Siberia.