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Flashcards in Rivers Deck (25)
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1

What is precipitation?

Water falls to the ground as this. Can be in the form of rain, snow, sleet or hail.

2

What is surface water?

Streams and rivers. It finds its way to the sea.

3

What is Ground water?

Water that vey slowly passes through the soil and rocks as groundwater flow.

4

Transpiration

Vegetation take water up through roots in order to grow. Some water returns to the air via leaves

5

Evaporation

Earth's water is passed up into the atmosphere. Liquid water is turned into vapour as it passes through the air.

6

In order, what are the processes of the water cycle?

Evaporation, condensation, precipitation, surface water, ground water and transpiration

7

Condensation

When vapour from the air condenses to water droplets to form clouds

8

Surface runoff

Water moving over the surface in eg. a river or to a river

9

Infiltration

Water soaks into soil

10

Through flow

Water flows through soil to eg. a river

11

Percolation

Water runs into underlying rock

12

Ground Water flow

Water flows through rock towards eg. a river

13

Interception

Roots from plants and trees suck up water from the soil to grow to intercept the water

14

River system: Source

Start of a river

15

Mouth

River joining a sea

16

Tributary

Small stream joining a river

17

Meander

A sweeping bend in a river

18

Confluence

Where two rivers join

19

Drainage basin

Area drained by a river system

20

Watershed

Raised area of land that separates drainage basins

21

3 parts of a river

Upper course
Middle course
Lower course

22

Hydraulic action

The force of water against the bed and banks.

23

Abrasion/Corrasion

The bed and the banks are worn down by the river's load. The river throws these particles against the bed and banks, sometimes at high velocity.

24

Attrition

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

25

Corrosion

The chemical reaction of river water. Acids in the water dissolve the bed and banks.