Across
1
Imaginary line around the middle of Earth
4
Piece of land jutting into the sea
6
Flat grassland in tropical regions
7
Body of water surrounded by land
10
Large slow-moving mass of ice
Down
2
Cold treeless Arctic plain
3
Line dividing two countries
4
Deep narrow valley with steep sides
5
Where river meets the sea
8
Land surrounded by water on three sides
9
Large natural elevation of earth
11
Tool for finding directions
12
Area where water covers the soil