Across
1
Tool for finding directions
4
Cold treeless Arctic plain
5
Ocean between Americas and Europe/Africa
6
Largest river in South America
7
Flat grassland in tropical regions
Down
1
Deep narrow valley with steep sides
2
Largest hot desert in the world
3
Visual representation of an area
8
Mountain that can erupt with lava
9
Steep rock face at edge of land
10
Height above sea level
11
Low area between mountains
12
Wearing away of land by water or wind