Across
1
Piece of land jutting into the sea
4
Large slow-moving mass of ice
5
Ridge of rock or coral near the surface
6
Flat grassland in tropical regions
7
Cold treeless Arctic plain
8
Physical features of land
11
Low area between mountains
Down
1
Deep narrow valley with steep sides
2
Landform where river meets the sea
3
Imaginary line around the middle of Earth
9
Large area covered with trees
10
Chain or group of islands
12
Flat elevated area of land
13
Largest river in South America