Across
1
Where river meets the sea
4
Large natural elevation of earth
5
One of seven major landmasses
7
Cold treeless Arctic plain
9
Largest ocean on Earth
11
Tool for finding directions
Down
2
Height above sea level
3
Land surrounded by water on three sides
6
Chain or group of islands
8
Vast body of salt water
10
Long-term weather patterns of an area
12
Ocean between Americas and Europe/Africa