Across
1
Dry land with little rainfall
3
Low-lying land surrounded by higher ground
5
Long-term weather patterns of an area
6
Landform where river meets the sea
7
Large natural stream of water
9
Large body of water partly enclosed by land
Down
2
Half of the Earth
4
Region between the two tropic lines
8
Large slow-moving mass of ice
10
Cold treeless Arctic plain
11
Body of water surrounded by land
12
Distance east or west of prime meridian
13
Raised area of land, smaller than a mountain