Across
1
Large natural stream of water
3
Tool for finding directions
6
Deep narrow valley with steep sides
8
Seasonal heavy rainfall
9
Largest hot desert in the world
11
Ocean between Americas and Europe/Africa
13
Total number of people in an area
Down
2
Land surrounded by water on three sides
4
Wearing away of land by water or wind
5
Vast body of salt water
7
Physical features of land
10
Region between the two tropic lines
12
Low-lying land surrounded by higher ground