Y10 GEO. DEFINITIONS

Infiltration

water on earths surface moves into rock/soil

Watershed

The boundary that separates a drainage basin

Evaporation

warm air hearts water causing it to evaporate into water vapor

Groundwater

water stored in the rock

Hydraulic Action

When the force of water hitting the river banks and bed

Solution

Dissolved material carried by the river

Confluence

The point where two rivers meet

Abrasion

Rocks scrape against the banks and bed of a river

Tributary

When a smaller river joins a bigger one

Gorge

2 steep walls created by water

Weathering

the process of breaking down rocks and minerals

Percolation

When water stores into permeable rocks

Transpiration

Water released from vegetation into the atmosphere

Source

where the river starts

Plunge Pool

when the harder rocks erode

Undercutting

when the softer rocks erode erodes underneath the harder rock, creating a ledge

Mass movement

movement of material down the slopes

Interception

Vegetation blocks/stops water from reaching the surface

Attrition

rocks knock against each other, becoming smaller, smoother and more rounded

Deposition

Energy of the river decreases and no longer has energy to transport the material