Across
1
Chain or group of islands
6
Raised area of land, smaller than a mountain
7
Low-lying land surrounded by higher ground
8
Cold treeless Arctic plain
10
One of seven major landmasses
Down
2
Large slow-moving mass of ice
3
Physical features of land
4
Narrow sea inlet between cliffs
5
Flat grassland in tropical regions
9
Large natural stream of water