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Earth Science Ch 10
Atmospheric Water
| Term | Definition |
|---|---|
| evaporation | Liquid changes into a gas |
| Condensation | A gas changes into a liquid |
| Vaporization | Liquid changes to a vapor |
| boils | Rapid vaporization of a liquid at its boiling point |
| freezes | Liquid changes to solid |
| melts | Solid turns into liquid |
| sublimation | Solid changes directly into a gas, or vice versa |
| Dew point | The temperature at which the relative humidity is 100% |
| cloud | A mass of water droplets or ice crystals suspended in air |
| Adiabatic cooling | Cooling of an air mass (without a change in the air mass’s overall thermal energy) by a reduction in atmospheric pressure and/or an increase in volume |
| Condensation nuclei | Microscopic particles of material, such as salt or smoke, around which the tiny water droplets form |
| Freezing nuclei | Small particles of clay or dust shaped like ice crystals |
| Supercooled water | Cloud droplets that remain liquid even with very cold temperatures |
| fog | The stratus cloud is so low that it touches the ground |
| drizzle | Small droplets of rain falling slowly |
| Mares’ tails | Cirrus clouds that are arranged in wispy streaks or bands across the sky |
| Mackerel sky | Cirro- and altocumulus clouds that form in patterns that resemble the striped markings on the sides of a mackerel |
| Dew | Water that condenses on a cool surface when air in contact with the surface cools to below its dew point. |
| frost | The Ice crystals that sublimate on a cold surface when the film of air in contacts with the surface is cooled to a dew point below freezing. |
| coalescence | Smaller pieces joining together to form a single larger mass. |
| Convection | The process by which energy is carried from one place to another due to differences of density in matter. (ex |
| orographic | The lifting of an air mass and resulting precipitation as it flows over a mountain. |
| front | The boundary surface between two dissimilar air masses. |
| Frontal wedging | Vertical Movement of a warm air mass due to a wedge of cold air moving in under it. |
| Convergence | The collision of two or more air masses or winds at a single location. |
| Freezing rain | Supercooled water that falls as rain and then freezes on the surface it contacts. |
| snow | Frozen precipitation formed by the sublimation of water vapor onto freezing nuclei. |
| sleet | Small frozen or partially frozen raindrops that form when rain falls through a layer of cold air. |
| hail | Precipitation in the form of spheres or irregular lumps of ice. |
Created by:
jrasmussenheritage
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