Glaciation

Question 1

18,000 years ago what percent of the land in the world was covered with ice?

Answer 1

30%

Question 2

What is an ice age

Answer 2

When there is a period of time when thick ice sheets cover vast areas of land and the global temp stays below 0 degrees centigrade

Question 3

What is a glacier

Answer 3

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

Question 4

An example of a glacier?

Answer 4

Merde glacé glacier in France

Question 5

What are the 3 processes by which glaciation affects the landscape

Answer 5

Erosion
Deposition
Transportation

Question 6

How do glaciers form

Answer 6

They first form in very cold places, lots of snow falls but not all of it melts, this means that lots of different layers of snow lives on top of each other
The bottom layers of the snow get compressed by the top layer. This means the air is pushed out and the snow turns into ice forming a glacier
The glacier gradually moves down slope under the force of gravity

Question 7

What is the difference between an ice sheet and a glacier

Answer 7

Masses of ice that cover large areas of a continent are called ice sheets whilst those who occupy mountain valleys are called glaciers

Question 8

Interglacial

Answer 8

Times without large ice sheets

Question 9

What percent of the earth’s surface is covered with ice currently

Answer 9

10%

Question 10

Where are glaciers found?

Answer 10

Antarctica and Greenland