Geography Practice KO Test - Rivers

• Precipitation


  When rain, sleet, snow falls from the sky.
• Surface run-off


  Water moves over the ground.
• Infiltration


  Water soaks into the ground.
• Condensation


  When clouds form due to water vapour cooling down.
• Uptake


  Plants take up water from the soil
• Transpiration


  Plants give off water vapour from the pours in their leaves.
• Evaporation


  Heat from the sun causes water to turn into water vapour.
• Ground water


  Water travels through soil and rocks under the surface.
• Source


  Where a river starts.
• Tributary


  Smaller stream that joins a river.
• Confluence


  Where two rivers meet.
• Mouth 


  Where a river ends.
• Impermeable Rock


  Rock that does not allow water to flow through it.
• Deforestation


  Trees being cut down.
• Building on floodplains


  Increases concreate and impermeable rocks.
• Hydraulic Action


  Waves smash against cliffs. Water gets into the cracks with the air, the pressure causes the rocks to break apart and fall off.
• Attrition


  When rocks being carried in the sea or a river knock against each other, breaking apart to become smaller and more rounded.
• Abrasion


  Pebbles grind along river bed, becoming smooth over time.
• Solution (Corrosion)


  When sea water dissolves certain types of rock.