geography

Transportation

• saltation: pebbles are bounced along the sea bed
• solution: soluble meterials dissolve
• traction:large particals pushed along the sea bed
• suspension 

Erosion

• attrition: rocks smash into each other
• hydrolic action: water forcing rocks to break
• abrasion: wearing away rocks
• solution:dissolves rocks

deposition

• water slows down 
• fall in volume
• river reaches its mouth

biological: plants break rocks

chemical: rain dissolves rocks

mechanical: breaking big rocks into little rocks

infiltration

• perculation
• throughflow
• ground water flow
• suface runoff
• channel flow

closed system-flows-evaporation,land,sea,atmosphere-heated-clouds-water vapor-evaporation,transpiration,plants/trees/vegatation

• channel storage
• groundwater storage
• interception storage
• surface storage

waterfalls

• gorges

waterfalls form where a river flows over hard rock followed by an area of soft rock, the softer rock is eroided.

upper course

• v - shaped vally

meanders

• oxbow lakes
• middle corse

tributary

• smaller river joining onto a biger river

source of the river 

confluence

• two rivers join

lower course

• river landforms
• deltas
• flood plain
• levees