Across
1
Raised area of land, smaller than a mountain
3
Low-lying land surrounded by higher ground
4
Largest ocean on Earth
8
Vast body of salt water
9
Land surrounded by water on three sides
10
Distance north or south of equator
Down
2
Largest hot desert in the world
5
Large natural elevation of earth
6
Steep rock face at edge of land
7
Large slow-moving mass of ice