Across
1
Vast body of salt water
5
Large natural elevation of earth
7
Long-term weather patterns of an area
8
Large slow-moving mass of ice
11
Distance north or south of equator
Down
2
Deep narrow valley with steep sides
3
Line dividing two countries
4
Mountain that can erupt with lava
6
Chain or group of islands
9
One of seven major landmasses
10
Wearing away of land by water or wind
12
Body of water surrounded by land