Geography theme 1 rivers and coasts

1. Erosion
   1. Hydraulic action

      Annotations:

      • The power of running water undercuts the bank and erodes the bed 
   2. Abrasion/Corrasion

      Annotations:

      • Rocks and pebbles carried by the river bash into the sides wearing them away 
   3. Attrition

      Annotations:

      • Small rocks and pebbles bash into each other 
   4. Solution

      Annotations:

      • Some minerals are dissolved in solution 
2. Deposition
3. Transportation

1. Upper
   1. Waterfalls
   2. V-shaped valleys
   3. Interlocking spurs
2. Middle
   1. Meander
   2. Oxbow lake
3. Lower
   1. Floodplain
   2. Delta
   3. Estuary

Annotations:

• precipitation -water from clouds  surface run off - water on surface interception- water collected on trees and plants infiltration - water soaks in soil throughflow- water seeps through soil to river perculation- movement of water through soil into rocks groudwater flow - water under water table which is stored evaporation -water vapor rising condensation - water vapor cooling down  water table - upper level of saturated ground 

1. Mississippi

1. Spits
2. Tombolos
3. Bars
4. Stacks, stumps and arches

1. Hard engineering
2. Soft engineering