A process of erosion where transported particles hit against each other, making the particles smaller and more rounded

The amount of water in a river which is passing a certain point at a certain time.

The movement of waters into the soil from the Earth's surface.

The process whereby precipitation is prevented from falling onto the ground by plants.

The movement of water from the soil into the bedrock

The bouncing of medium-sized load, like pebbles and small stones, along the river bed.

A stream which flows into a larger river.

The boundary between drainage basins, often a ridge of high land.

Water which is moving horizontally through the bedrock towards a river or the sea.

An area of low lying ground adjacent to a river, formed mostly of river sediments and subject to flooding.

A feature seen on the outside of some meander bends, which is caused by erosion of the river bank.

The transportation of the smallest load e.g. fine sand or clay, which is held up continually within the river water.

The point where two rivers meet.

A steep fall of river water, where its course crosses between different rock types, resulting in different rates of erosion.