Across
1
Raised area of land, smaller than a mountain
3
Cold treeless Arctic plain
4
Largest ocean on Earth
7
Body of water surrounded by land
8
Ocean between Americas and Europe/Africa
9
Height above sea level
Down
2
Flat elevated area of land
5
Piece of land jutting into the sea
6
Land surrounded by water
10
Imaginary line around the middle of Earth
11
Narrow sea inlet between cliffs
12
Area where water covers the soil