Across
1
Low-lying land surrounded by higher ground
3
Piece of land jutting into the sea
6
Distance east or west of prime meridian
7
Flat elevated area of land
8
Large natural stream of water
9
Largest ocean on Earth
Down
2
Large slow-moving mass of ice
4
Flat grassland in tropical regions
5
Vast body of salt water
10
Dry land with little rainfall
11
Chain or group of islands