Rivers

Question 1

Source

Answer 1

The start of the river.

Question 2

Mouth

Answer 2

The end of the river.

Question 3

Riverbed

Answer 3

The bottom of the river channel.

Question 4

Riverbank

Answer 4

The sides of the river channel.

Question 5

Meander

Answer 5

A bend or curve in a river.

Question 6

Tributary

Answer 6

A smaller river which flows into the main river.

Question 7

Confluence

Answer 7

The point at which two river meet.

Question 8

Vertical erosion

Answer 8

A river cuts down into the ground helped by gravity in the upper cource.

Question 9

Lateral erosion

Answer 9

A river cuts into the land either side of the river to creat a wider valley.

Question 10

V-shaped valley

Answer 10

Foun in the upper port of the river valley where vertical erosion create steep slopes.

Question 11

Floodplain

Answer 11

Areas of flat land found either side of the river created by lateral erosion.

Question 12

Long profile

Answer 12

The view of a river length ways from source to mouth.

Question 13

Cross profile

Answer 13

Cutting across the river so you can see the shape of the river channel.

Question 14

Velocity

Answer 14

The speed of the warter.

Question 15

Interlocking spur

Answer 15

Outcrops of land the river flows around in the upper cource.

Question 16

Warterfall

Answer 16

A vertical drop of th eriver caused by hard rock resistance to eroad

Question 17

Gorge

Answer 17

A vertical sided valley caused by the cutting back of a waterfall upstream.

Question 18

Plunge Pool

Answer 18

A deepened section of the riverbed at the bottom of a warterfall.

Question 19

Undercutting

Answer 19

Soft rock is eroded faster then the harder rock above causing it to collapse.

Question 20

River cliff

Answer 20

Steep sided riverbank caused by erosion on the outside of a meander.

Question 21

Slip of slope

Answer 21

Gentle sloped riverbank caused by deposition on th inside of the meander.

Question 22

Levee

Answer 22

Araised embankment found along the river in the middle.

Question 23

Ox-bow Lake

Answer 23

A meander bend which has become separated from the river by deposition as it has straightened its course.

Question 24

Estuary

Answer 24

A river mouth which has become flooded with sea water to become tidal.

Question 25

Flood/Storm Hydrograph

Answer 25

Graph showing a rainstorm event and its effect on the river discharge.

Question 26

Discharge

Answer 26

The amount of warter in the river.

Question 27

Lag time

Answer 27

The time between peak rainfall and peak discharge in the river.

Question 28

Bankfull discharge

Answer 28

The max amount of water a river can hold.

Question 29

Impermeable

Answer 29

Something which does not allow warter to pass through.

Question 30

Intercoption

Answer 30

Where vegetation catches rainfall and slows its movement to the ground.

Question 31

Surface runoff

Answer 31

The movement of water over the surface of the ground.

Question 32

Infiltration

Answer 32

When warter is absorbed into the ground.

Question 33

Saturation

Answer 33

When the ground is full of warter and cannot be absorbed anymore.

Question 34

Throughflow

Answer 34

The movement of warter downslope through the soil.

Question 35

Baseflow

Answer 35

The movement of warter out of the groundwarter store.

Question 36

Channel straightening

Answer 36

The removel of meanders to help the warter flow faster reducingflood risk.

Question 37

Afforestation

Answer 37

Planting trees to increase interception.

Question 38

Floodplain zoning

Answer 38

The limiting of land use based on level risk.

Question 39

Drainage Basin

Answer 39

The arra of land drained by a river and its tributaries.

Question 40

Watershed

Answer 40

The boundary of a drainage basin.

Question 41

Delta

Answer 41

Where the river splits into several channels at the mouth and deposits lots of sediment.