Geography

Concepts to cover

1. Youth, mature and old stages of a river; overland and channel flow
2. Valleys: V-shaped valley, gorge and canyon
3. Potholes, plunge pools, rapids and waterfalls
4. Incised meanders and paired or unpaired river terraces
5. Alluvial fans and deltas; delta types
6. Floodplains, natural levees, point bars, meanders, oxbow lakes and braided channels
7. Drainage patterns: dendritic, trellis, radial, rectangular, centripetal
8. River capture: headward erosion across a watershed, elbow of capture and misfit stream
9. River transport: traction, saltation, suspension and solution; bed load and suspended load