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Unit 6 - 8th Grade
Global Weather Systems - Unit 6 - 8th Grade
| Question | Answer |
|---|---|
| Air mass | a body of air that has about the same temperature and humidity throughout |
| Atmosphere | an envelope of mixed gases held to the Earth by gravity; the most dense gases are near the surface of the Earth |
| Climate | the long-term pattern of weather in an area |
| Convection current | when temperature differences cause liquids and gases (fluids) to expand and move; the less dense areas continually rise; the more dense areas continually sink, creating a cyclical current |
| Coriolis effect | the effect of the Earth’s rotation on the path of air and water; causes the path to curve |
| Hydrosphere | the ice, water vapor, and liquid water in the atmosphere, including oceans, lakes, streams, soils, and groundwater |
| Weather | the condition of the atmosphere at a place for a short period of time, including humidity, cloud cover, temperature, wind, and precipitation |