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

Related extras

The rock cycle

Due to the effect of both exogenic and endogenic forces, rocks constantly change. This is called...

Tectonic plates

Tectonic plates can move in relation to each other.

The phosphorus cycle

The phosphorus cycle describes the movement of phosphorus through the lithosphere, hydrosphere,...


It is a sedimentary rock with high calcium carbonate content.


People have always preferred to settle near rivers. What are the advantages and disadvantages of...

The water cycle (intermediate)

Water on Earth is in a continuous state of change. The water cycle includes processes such as...

Layers of the ocean

Physical properties, as well as the flora and fauna of the ocean change with depth.


An earthquake is one of the most devastating natural phenomena.

Added to your cart.