| A | B |
| weathering | the breaking and changing of rocks |
| dune | a pile of sand formed by the wind |
| fault | a crack in the earth's crust along which rocks move |
| volcano | a mountain formed by hardened lava with an opening through which lave, ashes, rocks and other matierals may come out |
| earthquake | the shaking of the ground caused by rock movement along a fault |
| landform | the shape of the land such as a mountain, plain or plateau |
| erosion | the moving of weathered rocks and soil by wind, water or ice |
| mineral | nonliving, solid matter from the earth |