A-level W&C 4: Drainage Basins

Where the river starts

• Mouth

• Source

• Tributary

• Confluence

Where the river meets the sea

• Mouth

• Source

• Tributary

• Confluence

Where two rivers join

• Mouth

• Source

• Tributary

• Confluence

A smaller river that joins a larger one

• Mouth

• Source

• Tributary

• Confluence

The edge of a drainage basin

• Watershed

• Watertable

• Waterhole

• Water capacity

This flow is where water drips through the leaves or down the stems

• Steam flow

• Drip tip

• Stem flow

• Drip run

Is groundwater flow generally fast or slow?

• Fast

• Slow

This depends on the conditions of the soil and antecedent conditions

• Stemflow

• Drainage basin

• Infiltration capacity

• Sublimation

This occurs if water is unable to inflitrate

• Groundwater flow

• Soil water flow

• Overland flow

• Stemflow

This is where water passes from the soil into permeable rocks

• Percolation

• Infiltration

• Precipitation

• Evapotranspiration