Glaciers
Deserts
Wind
Vocab
Hmm, interesting
100

This type of glacier flows between steep rock walls from a place near the top of the mountain valley. 

Valley Glacier

100

This type of weather exists alongside mechanical weathering, although, at a smaller significance. 

Chemical weathering

100

Strong winds deposit this...

Sediments

100

Enormous ice masses that flow in all directions and cover everything but the highest land.

Ice sheets.

100

This ice sheet holds nearly two-thirds of Earth’s fresh water.

The Antarctic ice sheet.

200

This type of movement happens two ways: plastic and basal.

Flow

200

Most streams in the desert are this...

Ephemeral

200

Whenever wind encounters an obstruction, no matter how small, this can form

Dunes

200

Ice mass slips and slides downhill.

Basal slip.

200

True or False. After glaciation, alpine valleys are no longer narrow.

True

300

Glaciers erode the land through these two processes. 

Plucking and abrasion

300

a cone of debris left when an intermittent stream flows out of a canyon, loses speed, and quickly dumps its sediment. 

Alluvial fan

300

Barchanoid is a type of this...

Dune

300

The lowest elevation in a particular area that remains covered in snow all year.

Snowline. 

300

As a glacier moves down a valley once occupied by a stream, the glacier widens, deepens, and straightens the valley. The once narrow V-shaped valley is changed into a U-shaped...

Glacial through.

400

This type of drift lays down sediment from glacial melt water. 

Stratified drift. 

400

This element does most of the erosional work in the desert.

Water

400

The lifting and removal of loose particles such as clay and silt is known as what. 

Deflation

400

The material deposited directly by the glacier. It is deposited as the glacier melts and drops its load of rock debris.

Till.

400

True or False. During the recent ice age, glaciers covered almost 30 percent of Earth’s land.

True.

500

When a glacier losses ice faster than it gains ice, it does this...

Retreats

500

These types of streams are susceptible to flash floods.

Ephemeral streams

500

When does abrasion happen?

when wind-blown sand cuts and polishes exposed rock surfaces.

500

These form parallel to the wind.

Longitudinal dunes. 

500

When glaciers melt, they leave layers or ridges of till called this...

Moraines. 

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