Across
1
City that is seat of government
3
Ridge of rock or coral near the surface
7
Chain or group of islands
8
Line dividing two countries
11
Region between the two tropic lines
12
Cold treeless Arctic plain
Down
1
Steep rock face at edge of land
2
Largest river in South America
4
Largest ocean on Earth
5
Where river meets the sea
6
One of seven major landmasses
9
Landform where river meets the sea
10
Large slow-moving mass of ice