Geography keywords

Tributary

A smaller river, joining the main river

Confluence

The point where 2 rivers join

Source

The start of the river

Mouth

The end of the river, where it meets the sea or ocean

Erosion

The wearing away of removal of material by water

Deposition

The dropping of material by water

Infiltration

The movement of water form the surface into the soil

Drainage basin

Rain falling in this area flows to a single river

Transportation

The movement of material by water

Surface runoff

The movement of water overland back into a river

Geology

The study of the earth and the materials of which it is made

Permeable

a rock or soil that allows water to pass through it

Impermeable

A rock or soil that does not allow water pass through it

Interception

The leaves of trees stop precipitation reaching the ground

Throughflow

The movement of water through the soil back into the river

River velocity

The speed at which water moves in the river channel

River discharge

The volume of water flowing in a river

Thalweg

The live of fastest flow along the course of a river