Glaciers (processes)

Question 1

Freeze-thaw weathering

Answer 1

A weathering process where water enters cracks in rocks, freezes and expands, gradually breaking the rock apart through repeated cycles.

Question 2

Glacial till

Answer 2

Unsorted sediment ranging from clay to boulders, deposited directly by glacial ice.

Question 3

Glaciated uplands

Answer 3

Upland areas shaped by glaciers, often characterised by rugged mountains and U shaped valleys, eg snowden

Question 4

Ice sheet

Answer 4

A large mass of glacial ice covering over 50,000km such as the one that covered the most of the uk during the last ice age

Question 5

Melt water

Answer 5

Water from the melting of the glacial ice, which contributes to erosion, transport and deposition

Question 6

Outwash

Answer 6

Sorted sediment deposited by meltwater streams flowing from the glaciers snout

Question 7

Glacier snout

Answer 7

The front

Question 8

Plucking

Answer 8

A form of glacial erosion where rocks are pulled away from the ground or valley sides by freezing and sticking to the glacier

Question 9

Rotational slip

Answer 9

The circular movement of ice within a corrie due to gravity, which deepens the hollow.