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CH 7 Plate Titanic
| Question | Answer |
|---|---|
| Pangaea | He proposed that all the continents were once part of a super-continent called Pangaea. |
| Continental drift | Wegener proposed the hypothesis of the continental drift. |
| Seafloor spreading | Seafloor spreading is the process by which new oceanic crust forms along a mid-ocean ridge and older oceanic crust moves away from the ridge. |
| Normal polarity | A state in which magnetized objects, such as compass needles, will orient themselves to point north. |
| Magnetic reversal | Magnetic reversal occurs and the magnetic field reverses direction. |
| Reversed polarity | A state in which magnetized objects would reverse direction and orient themselves to point south |
| plate tectonics | states that earths surface is made of ridgid slabs of rock |
| lithosphere | it is made up of the crust and the solid, uppermost mantle. |
| divergent plate vocabulary | forms where two plates separate. |
| convergent plate vocabulary | forms where two plates slide past each other. |
| subduction | the area where denser plate descends into earth along a convergent |
| convection | the circulation of material |
| ridge push | ridge push moves lithosphere |
| slab pull | scientists are still |
Created by:
cabrecam
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