Across
1
Largest hot desert in the world
5
Large natural stream of water
7
One of seven major landmasses
8
Raised area of land, smaller than a mountain
9
Line dividing two countries
10
Long-term weather patterns of an area
Down
2
Dry land with little rainfall
3
Deep narrow valley with steep sides
4
Largest ocean on Earth
6
Wearing away of land by water or wind
11
Chain or group of islands
12
Imaginary line around the middle of Earth