Across
1
Region surrounding the North Pole
2
Deep narrow valley with steep sides
5
Large slow-moving mass of ice
7
Piece of land jutting into the sea
9
Large area covered with trees
Down
2
Long-term weather patterns of an area
3
Raised area of land, smaller than a mountain
4
Largest ocean on Earth
6
Low-lying land surrounded by higher ground
8
Region between the two tropic lines