| A | B |
| Continental Drift | Theory of how the continents move over the surface of Earth |
| Pangaea | Land on Earth was all hooked together in one "super continent" |
| Moh's Hardness Scale | a way of identifying the hardness of rocks and minerals |
| rock cycle | explains how one type of rock changes into another type of rock |
| weathering | process of breaking rocks into soil, sand, and other pieces of sediment |
| water, wind, and roots of plants | these things cause weathering |
| erosion | process of moving sediment from one place to another |
| deoposition | water slows down and sediment drops to the bottom of the river |