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Science ch 7 study
study guide ch 7
| Question | Answer |
|---|---|
| Rocks move along this crack in the crust | fault |
| Shock waves of energy released in an earthquake | seismic waves |
| These waves move slower than body waves | surface waves |
| What happens to the Earth's temperature the deeper you go? | it increases |
| These processes can change the Earth's mantle (not earthquakes). | erosion and weathering (ex: flooding rivers or wind erosion) |
| Layer of Earth between the crust and the outer core | mantle |
| Innermost layer of the Earth | core |
| This happens to rocks along converging boundaries | rocks compress and break up while plates collide |
| Evidence of hotter temperatures as you go deeper in the Earth shows up when _____________, _____________, ________________ | scientists drill, hot geysers erupt, rocks melt |
| Molten rock that flows BENEATH the surface of the Earth | magma |
| This forms when magma pushes up from beneath the Earth's crust | dome mountains |
| The release of energy along a fault causes this | earthquake |
| A layer of earth composed of the solid upper mantle and the crust | lithosphere |
| These mountains are formed when ocean plates collide with land plates | fold mountains |
| An instrument that measures the strength of an earthquake | seismograph |
| The Earth's rigid outer layers are divided into _________________ | tectonic plates |
| The outermost layer of the Earth | crust |
| Most mountains form at ______________ | plate boundaries |
| The point underground where the faulting occurs during an earthquake | focus |
| Molten rock that flows ABOVE the Earth's surface | lava |