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Ch 5 Atmosphere
| Term | Definition |
|---|---|
| ultraviolet rays | electromagnetic waves that may produce skin cancer |
| microwaves | radio waves with a shorter wavelength |
| stratosphere | the layer of the atmosphere that contains the ozone layer |
| 75*F | The temperature in which the air in a desert can contain the most water vapor. |
| greenhouse effect | the trapping of heat by the atmosphere |
| crest | the highest point of a wave |
| frequency | the number of complete waves that pass a given point in a unit of time. |
| barometer | an instrument used to measure atmospheric pressure |
| diffusion | the random spreading of one fluid through another |
| wind | the horizontal movement of air across the earth's surface |
| solubility | the ability to be dissolved |
| water cycle | the movement of water from the sea into the air, and back into the sea |
| evaporation | changing of liquid to a gas |
| condensation | changing of gas to liquid |
| precipitation | discharge of water |
| atmosphere | the gaseous layer surrounding a planet or other heavenly body |
| wavelength | the distance from the crest of one wave to the crest of another |
| troposphere | the bottom layer of the atmosphere |
| Evangelista Torricelli | the inventor of the barometer |
| 29.92 inches | the normal average air pressure at sea level |
| Charles Boyle | the man who discovered that if the temperature of a gas remains constant, its volume and pressure are inversely related. |
| water | the main ingredient of life |
| water vapor | gaseous water in the atmosphere |
| violet | the shortest visible light wave |
| red | the longest visible light wave |