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Weather2
Mrs. Mercer's terms and definitions
| Question | Answer |
|---|---|
| Cold Front | the leading edge of a cooler mass of air, replacing (at ground level) a warmer mass of air. |
| Warm Front | leading edge of an advancing mass of warm air; it separates warm air from the colder air ahead |
| Air Pressure | the weight of the Earth's atmosphere pressing down on everything at the surface. Measured in millibars. |
| Conduction | transfer of thermal energy through direct contact |
| Convection | transfer of thermal energy through movement of a liquid or gas |
| Radiation | transfer of thermal energy through matter or space as electromagnetic waves |
| Density | mass divided by volume (amount of stuff packed into a specific amount of space) |
| Greenhouse effect | warming that results when solar radiation is trapped by the atmosphere |
| Emit | To give or send out (matter or energy); expel |