| A | B |
|---|
| Mantle | The layer of rock lying below the crust |
| Horizon | A layer of soil differing from the layers above and below it |
| Humus | Left over decompose plant and animal material in the soil |
| Glacier | a large mass of snow and ice that slowly moves downward and outward over the land |
| Erratics | an isolated boulder left behind by a glacier |
| Earthquakes | movement or vibrations in the rocks that make up the earth's crust |
| Crust | solid rock that makes up the earth and the moons outer surface |
| Terminus | The end or outer margin of a glacier where rock debris accumulates |
| Soil Profile | a vertical section of soil from the surface down to the bedrock |
| Seismic Waves | a vibration caused by rocks moving and breaking along faults |
| Pore Spaces | The space between particles |
| Permeability | rate at which water can be carried through a material--water passes quickly through porous soil with a high permiability |
| Outwashed Plains | gravel, sand, and clay carried by melting water from a glacier |
| Moraine | rock debries carried and deposited by a glacier |
| Fault | A break in the earth's out layer caused by the movements of rock |
| Soil Profile | the more horizons in this thing the greater the relative age of the soil |
