Across
1
Piece of land jutting into the sea
4
Ridge of rock or coral near the surface
6
Flat grassland in tropical regions
7
Vast body of salt water
8
Half of the Earth
9
One of seven major landmasses
10
Deep narrow valley with steep sides
Down
2
Dry land with little rainfall
3
Where river meets the sea
5
Largest ocean on Earth
8
Raised area of land, smaller than a mountain
11
Steep rock face at edge of land
12
Largest river in South America