Across
1
Large slow-moving mass of ice
2
Raised area of land, smaller than a mountain
4
Flat grassland in tropical regions
7
Large body of water partly enclosed by land
8
Vast body of salt water
10
Large natural stream of water
Down
2
Half of the Earth
3
Long-term weather patterns of an area
5
Region surrounding the North Pole
6
Cold treeless Arctic plain
9
Low area between mountains