Water On The Land: The River Valley

Question 1

The path of a river as it flows downhill is called its

Answer 1

Course

Question 2

Where is the upper course closest to?

Answer 2

Source of the river

Question 3

Where is the lower course closest to?

Answer 3

Mouth of the river

Question 4

What do rivers form when they flow downhill?

Answer 4

Channels

Valleys

Question 5

The shape of the valley and channel changes due to what?

Answer 5

Erosion

Deposition

Question 6

What does the long profile show?

Answer 6

The gradient changes over the course of the river

Question 7

What does the cross profile show?

Answer 7

Shows you what a cross-section of the river looks like

Question 8

Describe the upper course

Answer 8

V-shaped valley
Steep sides
Narrow
Shallow channel

Question 9

Describe the middle course

Answer 9

Gently sloping valley sides
Wider
Deeper channel

Question 10

Describe the lower course?

Answer 10

Very wide
Almost flat valley
Deep channel

Question 11

What changes the cross profile of a river?

Answer 11

Vertical and Lateral erosion

Question 12

What happens when Vertical erosion takes place?

Answer 12

Deepens the valley and channel

Making it V-Shaped

Question 13

Where is vertical erosion most dominant?

Answer 13

Upper course of the river

Question 14

What happens when Lateral erosion takes place?

Answer 14

It widens the valley and channel.

Question 15

Where is lateral erosion most dominant?

Answer 15

Middle and lower courses.

Question 16

What does the flowing of the water do to the landscape?

Answer 16

It erodes the landscape.
Wears it down.
Then transports the material somewhere else where its deposited.