| Term | Definition |
|---|
| model | used to demonstrate objects that are difficult to picture |
| geologists | scientists who study earth |
| crust | layer that covers the earths surface |
| mantle | makes up two thirds of the earths surface |
| earthquakes | tremblings or vibrations of the ground |
| focus | the first place rocks break below the surface |
| seismic waves | earthquake waves (greek word) |
| epicenter | the point directly above the focus |
| Richter Scale | scale to determine the strength of an earthquake |
| volcano | an opening in the earths crust from which gases can escape |
| weathering | process that breaks down rock |
| erosion | products of weathering are transported from place to place |
| deposition | process of materials being laid down or deposited |
| mechanical weathering | rock is broken apart due to physical forces |
| chemical weathering | water and oxygen react with minerals in rocks to produce new minerals |
| biological weathering | wearing away of rocks by living things |
| sediment | silt, sand, mud, or gravel |
| sedimentation | the process of sediments being deposited |
| landslides | sudden fast movements of rocks or soil down a slope |
| glacier | a moving mass of ice and snow |
Combine with other sets
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