Corrie Formation

Question 1

Abrasion

Answer 1

Rock fragments trapped in the glacier grind against the valley floor wearing it away like sandpaper

Question 2

Freeze-thaw

Answer 2

This is a type of weathering. The action of water flowing into cracks, freezing and becoming ice (when temperatures drop) and widening the cracks so much that rock breaks apart

Question 3

Plucking

Answer 3

When meltwater at the base of the glacier frewzes on the rock surface. As the glacier moves forward it extracts pieces of the rock surface

Question 4

Scree

Answer 4

Accumalation of loose stones/rocky debris at the base of the mountain

Question 5

Moraine

Answer 5

Material that has been carried and deposited by a glacier

Question 6

Glacier

Answer 6

Large masses of frozen ice that slowly move downhill

Question 7

Tarn

Answer 7

A small lake that forms in the hollow when a glacier has melted

Question 8

What direction does a corrie usually face

Answer 8

North or east

Question 9

Name of the circular motion in a glacier

Answer 9

Rotational slip

Question 10

Step one of a corrie formation

Answer 10

Snow accumulates in a protected hollow usually on the north or north-east facing parts of a mountain
A year later a glacier forms