Across
1
Largest river in South America
5
Dry land with little rainfall
6
Cold treeless Arctic plain
7
Large slow-moving mass of ice
8
Half of the Earth
9
Deep narrow valley with steep sides
Down
2
Physical features of land
3
Region surrounding the North Pole
4
Distance east or west of prime meridian
10
Low-lying land surrounded by higher ground
11
Tool for finding directions