| A | B |
| Weathering | The breaking down of rocks and other minerals at the earth's surface |
| Mechanical Weathering | Weathering that does not involve changes in the chemical makeup of rocks |
| Chemical Weathering | Weathering that involves changes in the chemical makeup of rocks |
| Temperature | When rocks are heated and cooled and over time break apart |
| Frost Action | The breaking apart of a rock caused by the water freezing and expanding within cracks |
| Root-Pry | The breaking apart of rocks caused by the growth of plant roots |
| Gravity | The pulling of rocks and soil down cliffs and slops |
| Landslide | Tumbling of soil,rocks and boulders down a steep hill |
| Oxidation | The process in which oxygen chemically combines with anonother substance |
| Sulfuric Acid | In places were there is Sulfur Oxides in the air can combine with rain causeing acid rain |
| Erosion | The process in which the products of weathering are moved from one spot to another |
| Mass Wasting | The Downhill movement of sediments due to gravity |
| Soil Creep | the slowest kind of mass waisting and occures when alternanit periods of freezing and thawing |
| Deflation | Erosion caused by the wind removing loose materials such as clay, silt and sand from the land |
| Loess | Accumulations of fine particals of sand and silt deposited by the wind+ |
| Dunes | Wind pushing sand over deserts and over time makeing huge piles of sand caused dunes |
| Wind Break | Are formed from fences or trees/bushes to slow down the wind to help reduce erosion caused by wind |
| Running Water | The major cause of erosion |
| Drainage System | A networkof rilles, qullies, streams and rivers in the area |
| Drainage Baison | The total area drained all rivers in a area |
| Waves | Erode and shape the shoreline |
| Sea Stack | Colums of resistant rock left standing when all that was around erodes away |
| Sea Cave | Bollowed out portion of a sea cliff |
| Beach | Formed from eroded rock particals that build up in one location |
| Abrasion | The wearing away of a substance by solid particles carried by wind, water or other forces |