Across
1
Low-lying land surrounded by higher ground
4
Region near the equator
6
Physical features of land
7
Height above sea level
11
Large body of water partly enclosed by land
Down
2
Large slow-moving mass of ice
3
Deep narrow valley with steep sides
5
Flat elevated area of land
8
One of seven major landmasses
9
Body of water surrounded by land
10
Line dividing two countries
12
Half of the Earth