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Worksheets8.1.5 Erosion, Transport and Waterfalls
Total questions: 14
Worksheet time: 7mins
The diagram shows the river process of erosion. In a fast-flowing river, water is forced into cracks in the bank. Over time this breaks the bank up. It is called _______________ .
Attrition
Hydraulic action
Solution
Abrasion
In the process of river transport, when small stones and pebbles are leaped or skipped along by the river current, this is called _____________ .
Suspension
Solution
Saltation
Traction
When soluble particles are dissolved into the river it is called:
Hydraulic Action
Abrasion
Saltation
Solution
Which process involves large boulders and rocks being rolled along the river bed?
Saltation
Traction
Suspension
Solution
Which Process involves small pebbles and stones being bounced along the river bed?
Solution
Traction
Saltation
none of the above
Tiny particles such as silt are usually transported:
in solution
in suspension
by saltation
by traction
The load of the river is all the materials carried by the water
True
False
In which section of the river do waterfalls form?
Upper course
Middle course
Lower course
Every course
For a waterfall to form there needs to be two layers of rock. Which way round must they be?
Soft rock on top of hard rock
Hard rock on top of soft rock
What is the name of the tallest waterfall in England, located on the River Tees, that you sketched last week?
High Power
High Water
High Force
High Fall
Below are listed the 4 types of erosion. Which two are important in the formation of waterfalls?
Hydraulic action
Abrasion
Attrition
Solution
The waterfall retreats (moves back) upstream towards the rivers source over thousands of years leaving behind a steep sided (a)
The river undercuts the hard rock, creating an overhang.
True
False
