Rivers T1.1

Rivers are important because....

(select any three answers)

• they provide us with a means of travel

• they supply us with water

• they contain rocks

• they shape the landscape

What are the different stages of the water cycle shown in the image?

a

b

c

d

e

f

Evaporation

Groundwater

Condensation

Throughflow

Transpiration

Precipitation

Identify the main components of the drainage basin.

a

b

c

d

e

Source

Watershed

Tributaries

Mouth

Confluence

What are the actions described for each transport method?

a

b

Mixing

Traction

Carried away

Suspension

Deposition takes place when a river slows down and no longer has the energy to carry the material it is transporting, so it drops some.

• True

• False

Match the parts of the waterfall on the diagram by selecting a letter from the dropdown list.

Hard rock =​ ​ (a)   Soft rock = ​ (b)  

Plunge pool = ​ (c)   Eroded material = ​ (d)   Undercutting = ​ (e)  

• D
• B
• A
• C
• E

Reorder the following to explain the stages of the waterfall and formation of a steep-sided deep gorge that marks where the waterfall once was located.

• Less resistant rocks are eroded quickly, undercutting the harder rock above.

• Waterfall retreats upstream.

• Overhanging hard rock collapses.

• Rushing water forms a deep pool in the river bed at the base of the waterfall, called a plunge pool.