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8.1.5 Erosion, Transport and Waterfalls

Total questions: 14

Worksheet time: 7mins

Name
Class
Date
1.

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 _______________ .

a)

Attrition

b)

Hydraulic action

c)

Solution

d)

Abrasion

2.

In the process of river transport, when small stones and pebbles are leaped or skipped along by the river current, this is called _____________ .

a)

Suspension

b)

Solution

c)

Saltation

d)

Traction

3.

When soluble particles are dissolved into the river it is called:

a)

Hydraulic Action

b)

Abrasion

c)

Saltation

d)

Solution

4.

Which process involves large boulders and rocks being rolled along the river bed?

a)

Saltation

b)

Traction

c)

Suspension

d)

Solution

5.

Which Process involves small pebbles and stones being bounced along the river bed?

a)

Solution

b)

Traction

c)

Saltation

d)

none of the above

6.

Tiny particles such as silt are usually transported:

a)

in solution

b)

in suspension

c)

by saltation

d)

by traction

7.

The load of the river is all the materials carried by the water

a)

True

b)

False

8.
"When rocks scrape along the river bank and bed" is what type of erosion?
a)
Attrition
b)
Abrasion
c)
Solution
d)
Hydraulic Action
9.

In which section of the river do waterfalls form?

a)

Upper course

b)

Middle course

c)

Lower course

d)

Every course

10.

For a waterfall to form there needs to be two layers of rock. Which way round must they be?

a)

Soft rock on top of hard rock

b)

Hard rock on top of soft rock

11.

What is the name of the tallest waterfall in England, located on the River Tees, that you sketched last week?

a)

High Power

b)

High Water

c)

High Force

d)

High Fall

12.

Below are listed the 4 types of erosion. Which two are important in the formation of waterfalls?

a)

Hydraulic action

b)

Abrasion

c)

Attrition

d)

Solution

13.

The waterfall retreats (moves back) upstream towards the rivers source over thousands of years leaving behind a steep sided (a)  

14.

The river undercuts the hard rock, creating an overhang.

a)

True

b)

False