Rivers Flashcards
What is traction
Large boulders and rocks rolled along the riverbed
What is solution
Mineralised rocks dissolved in the water and carried along in solution
What is Suspension
Fine light material carried along in the water
What is saltation
Small pebbles and stones bouncing along the riverbed
What is deposition
The river looses its energy and drops sediment being carried
What is hydrolic action
the force of the river against the banks can cause air being trapped in cracks. The preasure weakens the cracks and gradually wears it away.
What is abrasion
rocks caried by the river rab and scrape the boltom and banks of the river
What is attrition
rocks being carried by the river Smash together and break into Smaller rounder particals
What isma valley
An area with higher ground on either side.
Where a river runs through
Floodplain
The land either side of the river which may flood
if the river overflows.
