Across
1
Area where water covers the soil
3
Largest river in South America
7
Landform where river meets the sea
8
Large slow-moving mass of ice
9
Deep narrow valley with steep sides
11
Imaginary line around the middle of Earth
12
Physical features of land
Down
2
Tool for finding directions
4
Distance north or south of equator
5
Vast body of salt water
6
Dry land with little rainfall
10
Raised area of land, smaller than a mountain
13
Ridge of rock or coral near the surface