Y8 Rivers Flashcards
What is a valley?
An area with higher ground on either side. Where a river runs through
What is a floodplain?
The land either side of the river which may flood if the river overflows
What is a mouth (rivers)?
Where the river ends and meets the sea
What is a confluence?
The meeting point of two rivers
What is a tributary
A smaller river meeting a bigger oneand joing together
What is the watershed?
An imaginary outline of a river basin. An area of higher ground.
What is a river basin?
The area inside the watershed where all rain will collect into a river.
What is the source of a river?
Where the river starts
What is the river bank?
The edges of a river
What is vertical erosion?
Erosion downwards
What is lateral erosion?
Erosion sideways
What is the river bed?
The bottom of a river
What is hydraulic action?
The force of the river against the banks can cause air to be trapped in cracks. The pressure weakens the banks and gradually wears it away.
What is abrasion?
Rocks carried along by the river, rub and scrape along the river bed and banks, eroding them away.
What is attrition?
Rocks being carried along by the river smash together and break into smaller smoother and rounder particles.
