| A | B |
|---|
| Glacier | Large sheet of ice formed by the accumulated snowfall during an ice age. |
| Ice Age | A period of time when the earth experienced very low temperatures. |
| Sea Level | The elevation of the oceans surface. |
| Wisconsin Glacier | The name of the conglaciertinetal glacier that formed Long Island's surface features. |
| Landform | A particular feature that is part of the earth's surface. |
| Sediments | The materials that make up the earths surface. |
| Erosion | The taking away of sediment. |
| Glacial Debris | The sediment found inside and under the glaci er. |
| Harbor HILL Advance | The second advance of the Wisconsin Glacier occuring about 17,000 years ago. |
| Deposition | The putting down of sediment. |
| Moraine | A large hill left by the deposition of glacial debris. |
| Outwash Plain | A flat sandy area found downhill of a moraine, formed from sand being washed off. |
| Bluffs | Steep hills, formed from erroded headlands being washed away. |
| Harbor Hill Moraine | The moraine found on the North shore of Long Island. |
| Ronkonkoma Moraine | The moraine found in the central part of Long Island.ie.Bald Hill. |
| Harbors | Large depressions or basins cut into the land by large fingers of ice, which is then filled by the rising sea. |
| Kettleholes | A depression found in a moraine formed by a large buried chunk of ice melting and leaving a large depression. |
| Kettlelake | When a kettlehole comes in contact with an aquifer and fills forming a lake. |
| Terryville Outwash Plain | The outwash plain found south of the Harbor Hill Moraine |
| South Shore Outwash Plain | The outwash plain found south of the Ronkonkoma Moraine. |
