Across
1
Region surrounding the North Pole
5
Where river meets the sea
6
Goods sold to another country
7
Large slow-moving mass of ice
8
Deep narrow valley with steep sides
9
Ridge of rock or coral near the surface
10
One of seven major landmasses
Down
2
Cold treeless Arctic plain
3
Largest ocean on Earth
4
Half of the Earth
11
Steep rock face at edge of land
12
Large area covered with trees