Across
1
Large natural stream of water
4
Cold treeless Arctic plain
5
Wearing away of land by water or wind
8
Height above sea level
11
Long-term weather patterns of an area
Down
2
Piece of land jutting into the sea
3
One of seven major landmasses
6
Large slow-moving mass of ice
7
Land surrounded by water
9
Land surrounded by water on three sides
10
Largest ocean on Earth