Across
1
Region surrounding the North Pole
5
Low area between mountains
6
Seasonal heavy rainfall
7
Cold treeless Arctic plain
8
Largest river in South America
9
Raised area of land, smaller than a mountain
Down
2
Largest ocean on Earth
3
Ocean between Americas and Europe/Africa
4
Land surrounded by water on three sides
10
Large natural stream of water
11
Deep narrow valley with steep sides