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6.E.2.2
Continental Drift, Plate Tectonics, Earthquakes
| Question | Answer |
|---|---|
| magnetic field | generated by electric currents in the conductive iron alloys of its core, created by convection currents due to heat escaping from the core. |
| plasticity | capacity for being molded or altered |
| seismic wave | energy that travel through the Earth's layers, and are a result of earthquakes, volcanic eruptions, magma movement, large landslides and large man-made explosions that give out low-frequency acoustic energy. |
| ridge/rift | occur along the central axis of most mid-ocean ridges, where new oceanic crust and lithosphere is created along a divergent boundary between two tectonic plates. |
| trench | steep depressions in the deepest parts of the ocean [where old ocean crust from one tectonic plate is pushed beneath another plate, raising mountains, causing earthquakes, and forming volcanoes on the seafloor and on land. |
| nickel | one of the primary elements of the Earth's core |
| magma | extremely hot liquid and semi-liquid rock located under Earth's surface |
| collide | hit with force when moving |
| iron | most abundant element, by mass, in the Earth, constituting about 80% of the inner and outer cores of Earth. |
| plate boundaries | divergent, convergent, transform where the plates meet |
Created by:
Ms. Long 6
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