Across
1
City that is seat of government
5
Vast body of salt water
6
Chain or group of islands
7
Largest river in South America
11
Large area covered with trees
Down
2
Low area between mountains
3
Largest ocean on Earth
4
Flat grassland in tropical regions
8
Large natural stream of water
9
Mountain that can erupt with lava
10
Tool for finding directions
12
Largest hot desert in the world