Across
1
Large area covered with trees
5
Large natural stream of water
6
Cold treeless Arctic plain
7
Low-lying land surrounded by higher ground
8
Large slow-moving mass of ice
9
One of seven major landmasses
Down
2
Landform where river meets the sea
3
Region surrounding the North Pole
4
Deep narrow valley with steep sides
10
Steep rock face at edge of land
11
Flat grassland in tropical regions
12
Height above sea level
13
Piece of land jutting into the sea