Across
1
Low-lying land surrounded by higher ground
4
Large natural stream of water
5
Vast body of salt water
6
Goods sold to another country
8
Deep narrow valley with steep sides
11
Large slow-moving mass of ice
13
Region between the two tropic lines
14
Cold treeless Arctic plain
Down
2
One of seven major landmasses
3
Ocean between Americas and Europe/Africa
7
Large area covered with trees
9
Region surrounding the North Pole
10
Body of water surrounded by land
12
Goods brought in from another country