| Term | Definition |
| compression | stress that squeezes rock until it folds or breaks |
| shearing | stress that pushes a mass of rock in opposite directions |
| tension | stress that stretches rock so that it becomes thinner in the middle |
| reverse fault | a type of fault where the hanging wall slides upward; caused by compression in the crust |
| fault | a break or crack in the Earth's lithosphere along which rocks move |
| normal fault | a type of fault where the hanging wall slides downward; caused by tension in the crust |
| stress | a force that acts on rock to change it's shape or volume |
| hanging wall | the block of rock that forms the upper half of the fault |
| footwall | the block of rock that forms the lower half of the fault |
| anticline | an upward fold in rock formed by compression of earth's crust |
| syncline | a downward fold in rock formed by compression in earth's crust |