Year 9 rivers

Which 3 of the following are true for hard engineering?

• It works with nature

• It stops the natural processes

• It often involves building a phsical barrier

• It can create habitat such as saltmarshes

• It is often very expensive

Which part of a rivers course will you find both lateral and vertical erosion?

• Lower course

• River mouth

• Upper course

• Middle course

Which of the following is a soft engineering strategy?

• Flood warnings

• Flood gates

• Flood walls

• Dredging

Which two of the following are forms of river transport?

• Traction

• Abrasion

• Hydraulic action

• Saltation

• Deposition

Identify the landform to the left of the river

• Levee

• Meander

• Flood plain

• Estuary

Identify the river land forms shown on the map

• V shaped valley

• Water fall

• Estuary

• Meander

Where will most erosion happen on a meander?

• On the outside of the bend

• On the inside of the bend

• Where the river flows slowly

• In the centre of the river

What causes levees to form?

• Abrasion in the plunge pool

• Abrasion of a river cliff

• Deposition at river sides due to flooding

• Deposition on a point bar

How does forestry prevent flooding?

• Trees drink the extra water

• It doesn't rain as much when there are trees

• Trees roots create underground channels for the water

• Trees leaves intercept and slow water

Which rock characteristic is most likely to cause flooding?

• Porous

• Scree slopes

• Impermeable

• Permeable