Geography Year 8 Flashcards
Where does the river end
At the river mouth (meeting the sea)
What is the water shed
The water shed is where the tributary stop and no other water can get past
What is a tributary
It is where a smaller stream flows off from the river channel
Where does the river begin
It usually begins at the source. The source is usually a spring in a mountain or something like that
What do you call the part where two tributaries meet
A confluence
What is attrition
Where materials are transported along the river bed and collide and break up into smaller pieces. Usually occurs when the river is flowing in highland areas.
What is abrasion or corrasion
Smaller materials are rubbed against the river bank like a sand papering action. This is more likely to occur in lowland areas.
What is corrosion
Acids in the river dissolve the rock
What is hydrochloric action
The sheer force of the river dislodges particles from the river bank
What is saltation?
Sand sized particles are bounced along the river bed by the flow of the water.
What it suspension?
Find clay and sand particles are carried along with the water even at low discharges
What is traction?
Boulders and pebbles are rolled along the river bed at times of high discharge
What is solution?
Some minerals dissolved in the water such as, calcium carbonate. This requires very little energy.
What is saltation?
Sand sized particles are bounced along the river bed by the flow of the water.
What it suspension?
Find clay and sand particles are carried along with the water even at low discharges
