| A | B |
crust,  | thin outermost layer of the earth,  |
| inner core | solid innermost layer of the earth |
| outer core | hot, liquid layer surrounding the inner core |
| Moho | the boundary between the crust and the mantle |
| plasticity | the ability of rock to flow like a liquid |
| seismic wave | shock waves produced from earthquakes |
| fault | a break or crack along which rocks move |
| fold | a bend in a rock |
| dome | "earth pimple" |
| magma | hot molten rock beneath the earth's surface |
| anticline | an upward fold in a rock |
| syncline | a downward fold in a rock |
| blind fault | a fault that does not reach the surface |
| epicenter | the point on earth's surface directly above the focus of an earthquake |
| focus | underground point of origin of an earthquake |
| earthquake | the shaking and trembling resulting from sudden movement of earth's surface |
| lava | molten rock that has reached eart's surface |
| stress | forces within the earth that cause deformations in the rocks of the crust |
| tsunami | a large ocean wave caused by an earthquake |
| lithosphere | refers to the protion of earth covered by rock |