Across
1
Region between the two tropic lines
5
Large slow-moving mass of ice
8
Flat grassland in tropical regions
9
Distance east or west of prime meridian
10
Cold treeless Arctic plain
12
Steep rock face at edge of land
13
Total number of people in an area
Down
2
Largest river in South America
3
Mountain that can erupt with lava
4
Large area covered with trees
6
Height above sea level
7
Ocean between Americas and Europe/Africa
11
One of seven major landmasses
14
Low area between mountains