River Features and Flooding Flashcards
What is a meander
Bend in the river
On a meander where is the fastest flow?
The outside
On a meander where does deposition occur?
The inside
Is a river cliff likely to form on the outside or the inside of a meander?
Outside
Where is the hard rock located on a waterfall?
On top
Where is the soft rock located on a waterfall?
underneath
How is a plunge pool formed?
Force of water hitting rock
What is the ledge of hard rock called on a waterfall?
Overhang
When a waterfall retreats (goes backwards) if forms a
Gorge
What named example of a waterfall have we studied?
Niagara falls
What two ways have people used waterfalls?
- Tourism
- Hydroelectric
What is the flat area next to a river called?
Floodplain
What is the Bluff line?
Edge of a floodplain
What is the key process that forms floodplain?
Deposition
How are levees made?
Out of deposited material
How can levees be made?
They are made both naturally and man made
What word is used for water flowing over the surface of the land?
Overland flow
What word is used for water flowing into the soil?
Infiltration
What word is used when there is too much water in the soil and it cannot take anymore?
Saturation
Give the 4 natural causes of flooding
- Heavy rainfall
- Prolonged rainfall
- Steep relief
- Impermeable geology
Give 2 man made (human) causes of flooding.
- Deforestation
- Urbanisation
