Across
1
Largest hot desert in the world
4
Deep narrow valley with steep sides
6
Chain or group of islands
7
Long-term weather patterns of an area
8
Region surrounding the North Pole
9
Land surrounded by water on three sides
10
Seasonal heavy rainfall
Down
2
Ocean between Americas and Europe/Africa
3
Half of the Earth
5
Region between the two tropic lines
11
Tool for finding directions
12
Line dividing two countries