| A | B |
|---|
| Angle of Repose | The greatest angle that a material can remain stable. |
| Chemical Weathering | Changes in the rocks chemistry to break it down. |
| Creep | Downward movement of material. |
| Debris Flow | Rapid movement of soil and Regolith containing large amounts of water. |
| Differential Weathering | The idea that different surfaces weather at different rates. |
| Earthflow | Movement of soils and Regolith from a saturated soil in a tear drop form. |
| Eluviation | The washing out of fine soil components. |
| Erosion | Movement of materials though wind, water, or ice. |
| Exfoliation Dome | The unloading of rocks off massive plumes. |
| External Process | Weathering, mass wasting, and erosion are part of this process. |
| Fall | When large pieces of whole rock are released. |
| Flow | Materials move as a fluid down a surface. |
| Frost Wedging | Through the expansion of water in a closed system. |
| Horizon | Different soil zones that can be observed. |
| Humus | Decayed remains of plants and animals. |
| Lahar | Movement like a debris flow for volcanoes. |
| Laterite | Hot and wet tropical weathered soils. |
| Leaching | Depletion of soluble materials within a soil. |
| Mass Wasting | Transfer of rock down a side because of gravity. |
| Mechanical Weathering | The physical breaking of down of rock. |
| Parent Material | The mineral matter that is the base for the other soils. |
| Pedalfer | Collection of iron oxides within the soil. |
| Pedocal | Calcium carbonate soils. |
| Permafrost | Ground that is permanently frozen |
| Regolith | Weathered rock layer around the Earth. |
| Rockslide | Sudden movement of rock materials as they move down a surface. |
| Secondary Enrichment | Concentration of metallic ores as a result of weathering. |
| Sheeting | Where large slabs of rock are unloaded. |
| Slide | Where materials remain similar and move along a surface. |
| Slump | Movement of material along a curved surface. |
| Soil | Combination of mineral and organic material |
| Soil Profile | A collection of soil horizons. |
| Soil Texture | The different sized particles inside of the soils. |
| Solifluction | A specific type of creep in areas of permafrost. |
| Solum | True soil, layers O,A,E, and B. |
| Spherodial Weathering | The changing of blocking rock to a more spherical shape. |
| Talus Slope | The remains rocks from frost wedges weathering. |
| Weathering | Disintegration and decomposition of rock materials at the Earth’s surface. |
