Glaciation

Question 1

What is a Glacier?

Answer 1

A glacier is a large body of ice moving slowly down a slope or over a wide area of land.

Question 2

What is an Ice Age?

Answer 2

When a large area of the world stays below 0°C, allowing ice to stay all year round.

Question 3

When did the last Ice Age end?
A. 180,000 years ago
B. 1,800 years ago
C. 18,000 years ago
D. 1.8 Million Years Ago

Answer 3

C.

Question 4

What 3 processes are carried out by a glacier?

Answer 4

Erosion, Deposition and transportation

Question 5

How do Glaciers form?

Answer 5

In very cold climates, snow piles up. The bottom layers are compressed into ice. As it piles up even more, the baby glacier will start to move downhill under the force of gravity.

Question 6

What countries were covered in ice in the last ice age?

Answer 6

Ireland, Iceland, Norway, Sweden, Finland and Denmark

Question 7

What is an Interglacial?

Answer 7

An Interglacial is a time between 2 consecutive ice ages.

Question 8

Where can glaciers be found today?

Answer 8

In Antarctica and high up in mountains

Question 9

What is an output

Answer 9

Something that depletes a glacier

Question 10

What is an input?

Answer 10

A factor that adds material to a glacier

Question 11

What is frost-shattering?

Answer 11

When water in cracks freezes, it expands and the rocks crack, when it melts the rock falls apart.

Question 12

What types of moraines are found?

Answer 12

Terminal moraines, Lateral moraines, Medial moraines, Ground moraines and Recessional moraines

Question 13

What are the characteristics of a U-Shaped Valley?

Answer 13

Misfit Streams, Truncated Spurs, Hanging Valleys

Question 14

How is a corrie formed?

Answer 14

Snow Gathers in a hollow, turns to ice, plucks material from the ground, erodes the land, making it deeper.

Question 15

What is an avalanche?

Answer 15

An avalanche is a mass of snow which travels quickly down a slope

Question 16

What is an Arête?

Answer 16

A Ridge between two or more corries. Three back-to-back corries create a pyramidal peak

Question 17

Where are Medial Moraines found

Answer 17

In the centre of a glacier, running down the middle

Question 18

What are Drumlins

Answer 18

Large smooth mounds of deposited material that reaches >800 m in length and 50 m in height

Question 19

Where can ground moraines be found

Answer 19

Scattered on the ground around where a glacier was

Question 20

Where is a recessional moraine found

Answer 20

Where a glacier used to end

Question 21

What causes an avalanche naturally

Answer 21

Ice melt beneath the snow, warm weather, heavy snowfall (increases pressure) and steep slopes