Glaciers

1. this glacier is a mass of ice that moves downward from a mountain.
6. half-open, amphitheater-like hollow area near the head of a valley or mountainside resulting from glacial erosion (armchair).
8. depression in the earth created by a moving glacier (U-shaped).
9. material, such as earth, sand, and gravel, transported by a glacier.
10. long period of cold climate where glaciers cover large parts of the Earth. The last ice age peaked about 20,000 years ago. Also called glacial age.
12. A deep crack in the glacier's ice
13. this glacier is a large sheet of ice that covers an enormous area.

2. mountain formation where three or more glaciers meet to form a peak. Also known as a horn.
3. sharp mountain ridge created by the collision of two glaciers.
4. process where a glacier cracks and breaks apart.
5. When glaciers melt faster than precipitation can replace the ice.
7. mass of ice that moves slowly over land.
11. this glacier moves several feet in an hour, sometimes called a surge glacier.