Across
1
Mountain that can erupt with lava
3
Low-lying land surrounded by higher ground
5
Largest ocean on Earth
6
Imaginary line around the middle of Earth
9
Large natural stream of water
10
Tool for finding directions
11
Body of water surrounded by land
Down
2
Large natural elevation of earth
3
Line dividing two countries
4
Visual representation of an area
7
Piece of land jutting into the sea
8
Distance north or south of equator
10
Deep narrow valley with steep sides