Across
1
Long-term weather patterns of an area
5
Raised area of land, smaller than a mountain
6
Land surrounded by water on three sides
8
Physical features of land
10
Seasonal heavy rainfall
11
Cold treeless Arctic plain
Down
1
Deep narrow valley with steep sides
2
Largest ocean on Earth
3
Region surrounding the North Pole
4
Large natural stream of water
7
Large slow-moving mass of ice
9
Piece of land jutting into the sea
12
Vast body of salt water