Across
1
Imaginary line around the middle of Earth
5
Region between the two tropic lines
6
Half of the Earth
7
Piece of land jutting into the sea
8
Large natural stream of water
9
Low-lying land surrounded by higher ground
10
Deep narrow valley with steep sides
11
Largest ocean on Earth
13
Ridge of rock or coral near the surface
Down
2
Long-term weather patterns of an area
3
Chain or group of islands
4
Cold treeless Arctic plain
12
Mountain that can erupt with lava
14
Low area between mountains