Erosion

Front 1

runoff

Back 1

Movement of water on the surface of the earth toward a lower level

Front 2

erosion

Back 2

Process that moves soil and reshapes landscapes

Front 3

load

Back 3

Amount of eroded material carried by a steam or a river

Front 4

drainage basin

Back 4

Area drained by a river and it's tributaries

Front 5

headward erosion

Back 5

Process by which streams increase their length

Front 6

base level

Back 6

Low point of a stream or a river

Front 7

flood plain

Back 7

Area over which a stream spreads in times of high volume runoff

Front 8

meanders

Back 8

Broad curve formed by the erosion of a mature stream

Front 9

delta

Back 9

Area of sand and soil deposits formed by a stream that slows down as it enters a large body of water

Front 10

alluvial fans

Back 10

Fan shaped deposit at the bad of a mountian

Front 11

playas

Back 11

Desert plain where runoff collects temporarily in muddy pools

Front 12

drainage patterns

Back 12

Trellis, parallel, dendritic, deranged, rectangular, radial

Front 13

two erosional features of a desert

Back 13

Alluvial fans and playas

Front 14

what are the three stages of valley development?

Back 14

Youthful: v shaped and steep sided, mature: u shaped and slowmoving, Old age: slow moving, meanders and oxpows

Front 15

soil

Back 15

A combination of small rock fragments and organic material in which plants are grown

Front 16

weathering

Back 16

He process when rock breaks down to smaller fragments and then producing soil

Front 17

exfoliation

Back 17

When some rocks, especially granite flake off into sheets

Front 18

frost action

Back 18

Weathering when freezing and cracking of rocks get filled with water

Front 19

abrasion

Back 19

A wearing, grinding or rubbing away by friction

Front 20

hydration

Back 20

When water combines with certain minerals form new compounds

Front 21

oxidation

Back 21

When oxygen directly combines with an element

Front 22

carbonation

Back 22

Hen carbonic acid reacts with the minerals in rocks such as limestone

Front 23

glacier

Back 23

Sheet of ice that covers mountains or a large part of a continent

Front 24

plucking

Back 24

Process in which glacial ice freezes around rocks and plucks out of the ground as the glacier moves

Front 25

abrasion

Back 25

Weathering by physical contact causing weathering of rocks

Front 26

firn

Back 26

Snow pile in which half of the air spaces are filled with ice

Front 27

moraine

Back 27

Mound of unsorted rock materials that builds up along the edge of a glacier

Front 28

till

Back 28

Unsorted rock debris deposited directly by glaciers

Front 29

out wash plain

Back 29

Thick blanket of sediments formed as melt-water deposits material in front of a stationary glacier

Front 30

loess

Back 30

Thick layers of glacier till

Front 31

how do glaciers move?

Back 31

Glaciers move when pressure builds up from the weight some of the ice deforms and flows. Melt-water beneath the ice provides lubrication to allow the glacier to slide.

Front 32

what's is horn?

Back 32

An eroded mountain peak at the source of several glaciers forms a dramatic pointed spire

Front 33

what are hanging valleys?

Back 33

Formed from tributaries glaciers (much higher then mountain valley)

Front 34

what are kettles

Back 34

Gently sloping depressions. Big chunk left behind covered by debris and melts

Front 35

difference between a Jamie and a esker

Back 35

Kames are rounded and eskers are a narrow ridge