Across
1
Large body of water partly enclosed by land
3
Largest ocean on Earth
5
Wearing away of land by water or wind
6
Large slow-moving mass of ice
8
Low-lying land surrounded by higher ground
9
Cold treeless Arctic plain
Down
2
Steep rock face at edge of land
4
Chain or group of islands
7
Long-term weather patterns of an area
10
City that is seat of government