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Geography YR9 > Water Processes (erosion, Transportation, Water Cycle And River System) > Flashcards

Water Processes (erosion, Transportation, Water Cycle And River System) Flashcards

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1
Q

What is erosion?

A

Erosion is the wearing away of the land

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2
Q

What are the four processes of river Erosion?

A

Hydraulic Action, abrasion, Attrition and Corrosion

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3
Q

What is the Hydraulic action process?

A

This process involves the force of water against the bed and banks.

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4
Q

What is the Abrasion process?

A

This is the process by which the bed and banks are worn down by the river’s load.The river throws these particles against the bed and banks, sometimes at high velocity

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5
Q

What is the Attrition process?

A

Material carried by the river bump into each other and so are smoothed and broken down into smaller particles.

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6
Q

What is the corrosion process?

A

This is the chemical action of river water.The acids in the water slowly dissolve the bed and the banks.

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7
Q

What is the source?

A

The source is the start of a river

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8
Q

What is the mouth?

A

The mouth is the end of a river

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9
Q

What is the master stream?

A

The main river

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10
Q

What is the tributary?

A

A small stream that joins a larger river

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11
Q

What is a meander?

A

A sweeping bend in a river

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12
Q

What is a confluence?

A

The point where two rivers join

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13
Q

What is a watershed?

A

This is the boundary between one drainage basin and another.

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14
Q

What is evaporation?

A

The process where water changes from a liquid to a gas

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15
Q

What is condensation?

A

The process where water vapour changes into a liquid.

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16
Q

What is precipitation?

A

This is different types of water e.g rainfall, snow, sleet, fog

17
Q

What is surface water?

A

This is when water moves directly over the surface e.g river surface runoff can increase with heavy rainfall

18
Q

What is Transpiration?

A

This is when surplus water from plants in returned back to the atmosphere.

19
Q

What is groundwater?

A

This is when water moves through rocks

20
Q

What is traction? (Transportation)

A

Boulders and pebbles are rolled along the river bad at times of high discharge

21
Q

What is Saltation?

A

Sand sized particles are bounced along the river bad by the flow of water

22
Q

What is suspension?

A

Fine clay and sand particles are carried along within the water even at low discharges

23
Q

What is solution?

A

Some minerals dissolve in water such as calcium carbonate.This requires very little energy.

24
Q

What is a drainage basin?

A

The area of a land drained by a river system

Geography YR9 (8 decks)

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