| Term |
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| Definition |
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| 7-50km thick outer Earth layer of earth, solid, |
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| Earth layer below crust, 3000km thick, liquid |
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| 2000km thick Earth layer, liquid |
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| 1000km thick Earth layer, center, solid |
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| Two key points for continental drift |
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| show |
Convection current |
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| Where one plate sinks under the other as they collide |
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| show |
Divergent plate (constructive boundary) |
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| Valley caused when plates or faults move apart |
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| show |
Trench |
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| Mountains formed when plates move apart |
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| show |
Transform |
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| Upper part of a fold in a plate |
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| Lower part of a fold in a plate |
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| show |
Fault |
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| Part of a plate that has been pushed up |
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| When divergence happens at the fault level not plate level |
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| When convergence happens at the fault level not plate level |
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| When faults slide past each other |
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| show |
Slab pull |
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| show |
Ridge push |
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| show |
epicentre |
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| show |
focus |
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| show |
foreshock |
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| Smaller earthquakes after the main earthquake |
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| First compression/longitudinal waves to be felt in an earthquake |
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| show |
S waves |
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| Molten rock on the surface of the Earth |
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| show |
Magma |
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| Area where volcanoes form inside a plate not near the edges |
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| Volcano with low viscosity, low silica, gentle slope |
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| Volcano with high viscosity, high silica, steep slope |
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| show |
Pangea |
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| Strongest waves on the surface last felt in an earthquake |
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| show |
Magnetic stripping |
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