Glactiation

Question 1

What is a cold environment

Answer 1

Areas of land permanently covered by ice. They are
covered by glaciers, ice sheets and have frozen soil/rock.The temperature is constantly below freezing.

Question 2

Altitude

Answer 2

Altitude height above sea level

Question 3

Continentality

Answer 3

Distance from the ocean or sea

Question 4

Latitude

Answer 4

Distance from the equator

Question 5

What is a glacier

Answer 5

A glacier is a huge mass of ice that moves slowly over
land. It forms when there is a build up of snow over a
number of years. They can be found at altitude or sea level. They are known as rivers of ice.

Question 6

Where are cold environments found

Answer 6

They are found in high altitudes

Question 7

Freeze thaw

Answer 7

Freeze-thaw is when melt water or rain gets into cracks in
the bedrock (usually the back wall). At night the water
freezes, expands and causes the crack to get larger.
Eventually the rock will break away.

Question 8

Abrasion

Answer 8

• Abrasion happens when rocks which have frozen to the
base and the back of the glacier scrapes the bedrock.

Question 9

Plucking

Answer 9

Plucking is when melt water from a glacier freezes to the
base rock and lumps of cracked and broken rock. When
the ice advances downhill, rock is plucked from the back
wall.

Question 10

How are u shaped valleys formed

Answer 10

As glaciers flow through these valleys, they concentrate erosive action over the entire valley, widening its floor and over-steepening its walls. After the glacier retreats, it leaves behind a flat-bottomed, steep-walled U-shaped valley.