Across
1
Mountain that can erupt with lava
3
Where river meets the sea
4
Land surrounded by water
7
Long-term weather patterns of an area
8
Deep narrow valley with steep sides
10
Wearing away of land by water or wind
Down
2
Region surrounding the North Pole
5
Tool for finding directions
6
Line dividing two countries
7
City that is seat of government
9
Cold treeless Arctic plain
11
Vast body of salt water