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Earth and Space
| Question | Answer |
|---|---|
| lithosphere | the rigid outer part of the earth, consisting of the crust and upper mantle |
| asthenosphere | The upper part of the earths mantel that falls just below the lithosphere |
| magnetic field | An electromagnetic region surrounding earth due the differentiation of the earths interior |
| Hydrosphere | All layers of the earth containing water |
| Magnetosphere | the region surrounding the earth or another astronomical body in which its magnetic field is the predominant effective magnetic field |
| Atmosphere | the envelope of gases surrounding the earth or another planet |
| dynamo effect | Theory explaining the earths magnetic field as self sustaining |
| continental drift hypothesis | Theory that earths continents are drifting slowly due to convection currents in the earths interior |
| subduction zone | Converging plate boundary in which one plate is sub ducting under another |
| lamproites | mantle-derived volcanic and subvolcanic rocks |
| transform plate boundaries | Boundary in which plates are sliding past each other |
| divergent plate boundaries | Plates are moving in opposite directions |
| convergent plate boundaries | Plates are moving toward each other |
| conduction | The process of heat transfer through direct contact |
| convection | Heat transfer through air currents |
| radiation | Heat transfer as a result of energy rays transmitting through the air |
| plasma | ionized gas with positive ions |
| Geomagnetic reversals | Change in the earths magnetic field |
| Coriolis effect | the effect tends to deflect moving objects to the right in the northern hemisphere and to the left in the southern |
| ophiolite | an igneous rock consisting largely of serpentine |
| Global warming | gradual increase in the overall temperature of the earth's atmosphere generally attributed to the greenhouse effect |
| plate tectonics | theory explaining the structure of the earth's crust |
| Doppler Effect | an increase (or decrease) in the frequency of sound, light, or other waves as the source and observer move toward (or away from) each other |
| Greenhouse Effect | |
| Mantle | |
| seismograph | |
| seismic waves | |
| sea-floor spreading | |
| xenolith |