Across
1
Ocean between Americas and Europe/Africa
6
Region between the two tropic lines
7
Large slow-moving mass of ice
9
Low area between mountains
Down
2
Where river meets the sea
3
Raised area of land, smaller than a mountain
4
Cold treeless Arctic plain
5
Land surrounded by water on three sides
8
Large area covered with trees
10
Distance north or south of equator
11
Height above sea level
12
Region near the equator
13
Deep narrow valley with steep sides