| A | B |
|---|
| Weathering | The wearing down of materials due to weather/climate. |
| Erosion | The weathering and carrying away of soil, rock and other materials. |
| Landslide | The rapid sliding of very large mass of rock/land. |
| Rockslide | The rapid slide of rock down a slope along a line of weakness. |
| Mudslide | The sliding or flowing of mud and debris containing a large amount of water. |
| Avalanche | The sliding of a mass of snow/ice. |
| Ground slump | The downward slip of rock or a piece of land where the material stays together. |
| Ground Creep | Slow downward movement of soil due to saturation of water which freezes and thaws. |
| Sinkholes | Where the ground sinks as material below the surface is eroded by sub-surface water. |
| Saturation | Where soil/rock cannot hold anymore water. |
| Porosity | The space between rock particles. |
| Permeability | The ability for water to flow down through rock/soil. |
| Run-off | Excess water which cannot be saturated. |
| Water Table | The layers of rock/soil which are saturated with water. |
| Channeling | When flowing water tends to follow/create distinct pathways. |
| Pooling | Where water fills up a depression. |
| Deposition | When a stream deposits its load (settles out). |
| Delta | The build up of sediment formed where a stream enters a lake, sea or ocean. |
| Sediment | The material that settles at the bottom of a body of water. |
| Rate of Flow | How much volume a stream has at any given time (litres per second). |
