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convection currents
| Term | Definition |
|---|---|
| atmospheric movement | Global air circulation patterns within the atmosphere held to Earth by gravity and warmed as heat radiates from Earth; influenced by convection of warm, less dense air (rises and spreads out) and cold, dense air (sinks) |
| climate | Average weather patterns for a particular region |
| convection | Heat transfer caused by the rising of hotter, less dense fluids and the falling of cooler, denser fluids |
| convection current | A circular movement of fluids caused by the rising of hotter, less dense fluid and the falling of cooler, denser fluid |
| coriolis effect | The apparent deflection of moving air, as seen by an observer on Earth, as a result of Earth’s rotation |
| density | The amount of matter in a given space or volume |
| global | Relating to the whole world |
| ocean currents | Directional movements of ocean water; surface currents result from steady winds over the ocean surface; deep currents result from density variations due to temperature and salinity difference |
| rotation | The spinning of Earth on its axis that causes day and night to occur |
| salinity | Saltiness or dissolved salt content of a body of water |
| temperature | Average kinetic energy of all the particles in a material; measured by a thermometer in degrees (usually degrees Celsius or degrees Fahrenheit) |
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