Water On The Land Flashcards
Name four features the upper course of the river has
V shaped valley Vertical erosion Lots of energy Erodes down Source Waterfall Gorge Interlocking Spurs
Name 3 features of a middle course
Medium valley Lateral erosion Transports the load Flood plain Ox bow lake Meander Slip off slope
Name 3 features of the lower course
Large valley Flood plain Mouth Estuary Delta
What is hydraulic action
The sheer force of the water
What is abrasion
The rivers load bashing against the river bed
What is attrition
The load bashing against each other
What is solution in terms of erosion
Water dissolving particles of the rivers load
What is traction
Large boulders moving along the river bed
What is saltation
Pebbles bouncing along the river bed
What is suspension
Small particles of mud in water this is what gives it it’s brown colour
What is solution in terms of transportation
Minerals being dissolved into the water and carried that way
What type of rock is at the top of a waterfall
More resistant rock
What type of rock is lower than the more resistant rock
Less resistant rock
What topples over in a water fall to cause the formation of a gorge
An overhang
What does hydraulic action cause in a water fall
The plunge pool