| A | B |
| glacier | a huge mass of moving ice that is so big and thick it doesn’t |
| glacial polish | like sandpaper on wood, glaciers polish rock. When they melt and retreat, the exposed rock looks smooth and shiny |
| glacial striations | long scratches cut in rock by glaciers which help |
| moraines | Ridges or mounds formed when glaciers deposit bits of soil, |
| kettle | A small scooped out area formed when a piece of ice that was |
| cirque | A bowl-shaped/rounded hollow or depression formed when a |
| horn | A steep, pointed peak formed when several cirque glaciers erode |
| erratic | Boulders (sometimes truck size!), originally carried by glaciers, |
| continental glaciers | Sheets of glacial ice that cover a large area of |
| ice age | a period of hundreds of thousands of years when the climate |
| Ice Age | the most recent ice age, which began about two million years |