Across
1
Imaginary line around the middle of Earth
4
Largest river in South America
5
Region between the two tropic lines
6
Ocean between Americas and Europe/Africa
Down
1
Where river meets the sea
2
Land surrounded by water
3
Cold treeless Arctic plain
7
Flat elevated area of land
8
Vast body of salt water
9
Large natural stream of water
10
Raised area of land, smaller than a mountain
11
Steep rock face at edge of land
12
Dry land with little rainfall