| A | B |
|---|
| erosion | moving material by wind, water, glacier, or gravity |
| uniformitarianism | principle that states processes that are in operation today were in the past |
| weathering | breaking down of material into smaller parts |
| mechanical weathering | break down with no chemical change |
| abrasion | grinding of rocks into smaller parts |
| ice wedging | ice melts flows into cracks and freezes expanding breaking rocks |
| chemical weathering | breaks down and changes the chemical makeup |
| oxidation | oxygen combines with other chemicals like iron to make rust |
| permeable | material that water can pass through |
