Waterfalls form where the river flows over a steep precipice in its course.

Related extras


Lightning is a sudden electrostatic discharge accompanied by a sound known as thunder.

Wind at the beach

Sea and land breeze form because of the differing warming of land and sea.


It is a sedimentary rock with high calcium carbonate content.

Glacier (intermediate)

A glacier is a large body of ice that forms from snow, and is in constant, slow motion.

The work of glaciers

A glacier is a large body of ice in constant, slow motion down a hillside.

The formation of fog

Fog is a type of cloud that forms close to the surface of the Earth. There are places on the...

Abrasion coasts

The destructive force of waves can create steep cliffs in certain coastal areas. Let’s see how...

Carbon cycle

Carbon is bound in organic substances during photosynthesis, while during breathing, it...

Added to your cart.