Across
1
Tool for finding directions
3
Area where water covers the soil
4
Low-lying land surrounded by higher ground
6
Cold treeless Arctic plain
9
Half of the Earth
10
Largest ocean on Earth
11
Piece of land jutting into the sea
Down
1
Steep rock face at edge of land
2
Distance north or south of equator
5
Narrow sea inlet between cliffs
6
Region between the two tropic lines
7
Largest hot desert in the world
8
Land surrounded by water