Across
1
Largest hot desert in the world
5
Region between the two tropic lines
6
Where river meets the sea
7
Ocean between Americas and Europe/Africa
9
Low-lying land surrounded by higher ground
10
Distance east or west of prime meridian
12
Steep rock face at edge of land
Down
2
Ridge of rock or coral near the surface
3
Land surrounded by water
4
Chain or group of islands
8
Low area between mountains
11
Dry land with little rainfall