Across
1
Ridge of rock or coral near the surface
4
Chain or group of islands
6
Piece of land jutting into the sea
7
Land surrounded by water
11
Cold treeless Arctic plain
Down
2
Largest ocean on Earth
3
Largest hot desert in the world
5
Dry land with little rainfall
8
Large natural stream of water
9
Distance east or west of prime meridian
10
Distance north or south of equator
11
Region between the two tropic lines
12
Deep narrow valley with steep sides
13
Body of water surrounded by land
14
Mountain that can erupt with lava