Across
1
Land surrounded by water on three sides
5
Large natural stream of water
7
Chain or group of islands
10
Large slow-moving mass of ice
11
Region surrounding the North Pole
Down
2
Large natural elevation of earth
3
Half of the Earth
4
Low-lying land surrounded by higher ground
6
Landform where river meets the sea
8
One of seven major landmasses
9
Wearing away of land by water or wind
12
Imaginary line around the middle of Earth