Rivers

Source

Where the river starts

Mouth

Where the river meets the sea

Levees

Raised banks formed on the river's floodplain

Oxbow lake

Forms when a meander becomes pronounced. River erodes through the neck, forming a new course. River deposits material in old meander, cutting it off & forming an oxbow lake

Confluence

Meeting point of 2 rivers

Hydraulic action

Erosion by moving water

Abrasion

River's load hitting off the bed & banks carried my moving water

Attrition

Rocks hitting off each other & becoming smooth/rounded

Solution

Water dissolving parts of rock with carbonic acid

Rolling

Heavy rock rolled along river bed by force of water

Bouncing

Pebbles bouncing alone river bed

Solution

Salt dissolving in water

Suspension

Particles suspended by water

Upper course

Fast flowing, steep waterfalls

Middle course

More water, some deposition, meanders

Lower course

Deposition, slow, deltas

Waterfalls

Forms when hard rock meets soft rock. Soft rock is eroded & forms a vertical drop

Meander

Bends in a river, forms oxbow lakes

Delta

Deposition at mouth of the river. River splits up into distributaties as I flows over a delta