Across
1
Region near the equator
1
Region between the two tropic lines
4
Area where water covers the soil
5
Tool for finding directions
7
Largest river in South America
8
Deep narrow valley with steep sides
11
Flat grassland in tropical regions
Down
2
Large natural elevation of earth
3
Distance east or west of prime meridian
5
One of seven major landmasses
6
Steep rock face at edge of land
9
Chain or group of islands
10
Land surrounded by water on three sides