- Basal Slip: The process that causes the ice at the base of a glacier to melt and the glacier to slide.
- Crevasse: In a glacier, a large crack or fissure that results from ice movement.
- Firn: Cycles of partial melting and refreezing change the snow into grainy ice.
- Glacier: A large mass of moving ice.
- Hard Water: Water with high concentrations of calcite.
- internal plastic flow: The process by which glaciers flow slowly as grains of ice deform under pressure and slide over each other.
- Snowfield: At high elevations and in polar regions, snow may remain on the ground all year and form an almost motionless mass of permanent snow and ice.
- Snowline: The elevation above which ice and snow remain throughout the year.
- Soft Water: Water with low concentrations of calcite.
- Travertine: A substance that forms around the edges of a spring.