Ravenous River Vocab

Question 1

Define

Watershed

Answer 1

Highlands or hills that separate one drainage basin from another

Question 2

Define

Confulence

Answer 2

The point where two rivers/streams join/meet

Question 3

Define

Tributary

Answer 3

A smaller stream or river that joins a bigger stream or river

Question 4

Define

Source

Answer 4

The starting point of a river or stream

Question 5

Define

Mouth

Answer 5

The point where a river leaves the drainage basin and enters the sea

Question 6

Define

Weathering

Answer 6

Weathering is the breakdown of rocks by natural processes ** not because of moving it**

Question 7

Define

Mass movement

Answer 7

Mass movement is the transport of sediments/mass down a slope/valley due to gravity

Question 8

Define

Erosion

Answer 8

The breakdown of rocksdue to movement of it

Question 9

Define

River transport

Answer 9

The movement of sediments/mass due to water

Question 10

Define

Deposition

Answer 10

When a river loses it’s energy,and begins to drop material onto the seabed, heaviest frist

Question 11

Define

Soil creep

Answer 11

Individual particles in the soil, moving slowly down a slope due to gravity

Question 12

Define

Slumping

Answer 12

When a river erodes a slope causing materials of the slope to fall off the cliff edge

Question 13

Define

Abrasion

Answer 13

When load is dragged by water, wearing away the banks and bed of the river

Question 14

Define

Attrition

Answer 14

When river load collides with others, wearing eachother down

Question 15

Define

Solution

Answer 15

When weak acids dissolves sedimentary rocks on the bed

Question 16

Define

Hydraulic action

Answer 16

The sheer force of water trapping air in the seabed, fracturing the rocks

Question 17

Define

Interlocking spurs

Answer 17

As rivers lose power, it erodes less efficiently, forming slopes(spurs) at meanders.But as the slopes grow deeper, they force the water to the other side, forming a new spur and repeating the process

Question 18

Define

Waterfalls

Answer 18

Occurs when water flows over different resistance sea beds, eroding faster than the other rocks, forming a undercut, and eventually with mass erosion a plunge pool

Question 19

Define

Meander

Answer 19

Large bends that form on the middle course due to deposition(on inner curve) and erosion(outer curve)

Question 20

Define

Oxbow lake

Answer 20

When meander bends to the point the river shortcuts it, leaving behind a horseshoe lake

Question 21

Define

Levees

Answer 21

Natural embarkment formed by deposition of sediments during the aftermath of a flood

Question 22

Define

Flood-plains

Answer 22

The area of land around a river where it is most likely to flood into regularly.

It can also refer to the area flattened by the reformation of meanders and oxbows

Question 23

Define

Deltas

Answer 23

A mouth in which river power is so low new pieces of land form on the mouth from deposition, causing the river to revert back into tributaries

Question 24

Define

Drainage basin

Answer 24

An area of land drained by a rivers and its tributaries