Across
1
Region near the equator
4
Largest hot desert in the world
6
Distance north or south of equator
7
Where river meets the sea
8
Largest river in South America
10
Wearing away of land by water or wind
12
Largest ocean on Earth
Down
2
Tool for finding directions
3
Mountain that can erupt with lava
5
Large slow-moving mass of ice
9
Land surrounded by water on three sides
11
Ridge of rock or coral near the surface