| A | B |
|---|
| geologist | a scientist who studies the origin, history, and structure of the earth |
| mineral | a natural substance that is not of plant or animal origin (ie. gold, silver, lead) |
| silt | fine particles of earth found at the bottom of lakes and rivers |
| glacier | large mass of ice that moves very slowly down a mountain or through a valley |
| geography | the study of the earth and its plant and animal life |
| unglaciated | not covered by glaciers |
| moraine | mass of boulders, stones, or other materials that has been carried and deposited by a glacier |
| quartzite | a rock formed by the compression of sandstone |
| butte | a hill that rises sharply and has a flat top |
| infinite | having or seeming to have no limits; endless |
