| frostshattering | | This type of weathering includes erosion caused by the friction of running water, flowing ice or wind energy. |
| masswasting | | Form of mechanical weathering common in Canada. |
| pingo | | This type of fault has caused countless earthquakes in Turkey. |
| turkey | | This time scale relates to the lives of people - in hours, days and years. |
| seismograph | | The laying down of weathered material. |
| mechanical | | This form of mass wasting is common in Northern Canada where permafrost occurs. The upper layer of soil that thaws in summer graduallyflows downward. |
| asthenosphere | | Here, heat from friction, pressure, and radioacgtive decay make the granite upper mantle act just like plasticine. |
| angleofrepose | | This type of weathering is not common in polar areas. It is more common in the tropics. |
| erosion | | This causes the Nazca plate to travel under the South American Plate. |
| human | | According to Wilson, the continents travel on these. |
| baselevel | | This occurs when ice expands in the cracks of rocks. |
| deposition | | This scale is the most popular type used to measure earthquakes. |
| fossils | | In 1999, an earthquake caused extreme devastation and killed thousands of people here. |
| strikeslip | | Mass wasting of snow. |
| richter | | This measures the intensity of earthquakes. |
| solifluction | | These confirm the validity of the Theory of Continental Drift. |
| subductionfault | | He proposed the Theory of Continental Drift. |
| geological | | Point to which all surfaces erode, assuming tectonic stability does not interfere with gradational processes. |
| gradation | | This type of expansion is analogous to what happens when an ice cube cracks in water. This happens to rocks in desert regions. |
| Bacon | | A scale that measures time in terms of millenia. |
| chemical | | A curious hill found in northern areas that results from frost action. |
| plates | | Gradational process that results from weathered material sliding down a slope because of the force of gravity. |
| thermal | | Processes of this include weathering, transport and deposition. |
| Wegener | | Highest angle that a slope can sustain without mass wasting occuring. |
| exfoliation | | This occurs when both weathering and transport take place. |
| avalanche | | In 1620, he observed that the continents seem to fit together in one giant jigsaw puzzle. |
