Across
1
Largest river in South America
4
One of seven major landmasses
7
Low area between mountains
10
Distance north or south of equator
11
Dry land with little rainfall
12
Visual representation of an area
Down
2
Half of the Earth
3
Mountain that can erupt with lava
5
Raised area of land, smaller than a mountain
6
Cold treeless Arctic plain
8
Land surrounded by water on three sides
9
Region surrounding the North Pole