Across
1
Large body of water partly enclosed by land
3
Deep narrow valley with steep sides
5
Low-lying land surrounded by higher ground
6
Piece of land jutting into the sea
8
Largest ocean on Earth
9
City that is seat of government
10
Land surrounded by water
11
Body of water surrounded by land
Down
2
Cold treeless Arctic plain
3
Tool for finding directions
4
Largest river in South America
7
Wearing away of land by water or wind