Across
1
Land surrounded by water
4
Deep narrow valley with steep sides
5
Large natural elevation of earth
6
Area where water covers the soil
7
Imaginary line around the middle of Earth
8
Raised area of land, smaller than a mountain
Down
2
Mountain that can erupt with lava
3
Chain or group of islands
4
One of seven major landmasses
9
Flat grassland in tropical regions