Across
1
Low area between mountains
3
Ridge of rock or coral near the surface
4
Region near the equator
5
Largest ocean on Earth
7
Large area covered with trees
8
Large natural elevation of earth
10
Raised area of land, smaller than a mountain
12
Flat grassland in tropical regions
13
Imaginary line around the middle of Earth
Down
2
Wearing away of land by water or wind
3
Large natural stream of water
6
City that is seat of government
9
Ocean between Americas and Europe/Africa
11
Tool for finding directions