Across
1
Imaginary line around the middle of Earth
4
Low area between mountains
5
Steep rock face at edge of land
6
Largest ocean on Earth
9
Where river meets the sea
Down
2
Large slow-moving mass of ice
3
Large natural elevation of earth
6
Flat elevated area of land
7
Region between the two tropic lines
8
Piece of land jutting into the sea
10
Land surrounded by water
11
Half of the Earth
12
Landform where river meets the sea