Across
1
Large body of water partly enclosed by land
3
Largest ocean on Earth
4
Half of the Earth
5
Raised area of land, smaller than a mountain
8
Total number of people in an area
9
Region surrounding the North Pole
Down
1
Large slow-moving mass of ice
2
Land surrounded by water
6
Large natural elevation of earth
7
Region between the two tropic lines
10
Wearing away of land by water or wind
11
Flat grassland in tropical regions
12
Low-lying land surrounded by higher ground