| Term | Definition |
| IGNEOUS | Made from molten rock after it cools down and solidifies |
| METAMORPHIC | Rocks changed by intense heat or extreme pressure |
| SEDIMENTARY | Particles deposited by rivers, sea etc - compressed and dried out |
| Weathering | Takes place "in situe" |
| In situe | No movement |
| 3 processes of erosion | Erosion, transportation, deposition |
| PLUCKING | Results from glacial ice freezing onto solid rock - As glacier moves away, it pulls with it large pieces of rock, because of freeze thaw |
| ABRASION | When the material carried by a glacier rubs against and like sandpaper wears the sides and floors of a valley |
| CORRIE | Deep rounded hollows with a steep back wall and a rock basin. Found on steep mountains |
| FREEZETHAW | Moisture gets into rock cracks, temperature falls below 0, moisture freezes. Cracks expand and rocks get loosened. May fall down slope under gravity |