Across
1
Chain or group of islands
5
Land surrounded by water
8
Distance north or south of equator
10
Imaginary line around the middle of Earth
12
Ridge of rock or coral near the surface
Down
2
Cold treeless Arctic plain
3
Largest hot desert in the world
4
Flat grassland in tropical regions
6
City that is seat of government
7
Large body of water partly enclosed by land
9
Wearing away of land by water or wind
11
Body of water surrounded by land
13
Ocean between Americas and Europe/Africa