Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
21 Cards in this Set
- Front
- Back
|
Source |
The start of a river |
|
|
Mouth |
The end of the river |
|
|
Confluence |
The point where 2 rivers meet |
|
|
Tributary |
A smaller river that joins the main river |
|
|
Meander |
A natural bend in the river |
|
|
Drainage Basin |
An area of land drained by a river and it's tributaries |
|
|
Impermeable |
Water can not soak in |
|
|
Permeable |
Water can soak in |
|
|
Attrition |
When rocks bang in to each other an become small, round pebbles. |
|
|
Plunge Pool |
The bottom of the waterfall |
|
|
Gorge |
The steep sided valley found ahead of a waterfall |
|
|
Abrasion |
When rocks erode the bed and banks of the river |
|
|
Solution |
When soluble rocks dissolve in river water |
|
|
Traction |
When large rocks are rolled along the river bed |
|
|
Saltation |
When rocks are bounced along the river bed |
|
|
Suspension |
When sediment is transported by floating in the water |
|
|
Deposition |
The dropping of sediment |
|
|
Erosion |
The wearing away and breaking down of rocks |
|
|
Weathering |
The breakdown of rock in situ |
|
|
Physical causes of flooding |
Heavy rain, snow melt, small river channel, impermeable geology, steep slopes |
|
|
Human causes of flooding |
Urbanisation, global warming, deforestation |
