Across
1
Mountain that can erupt with lava
4
Largest hot desert in the world
5
Steep rock face at edge of land
10
Where river meets the sea
11
Height above sea level
Down
2
Tool for finding directions
3
Largest ocean on Earth
6
Low-lying land surrounded by higher ground
7
Long-term weather patterns of an area
8
Raised area of land, smaller than a mountain
9
Low area between mountains