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Chapter 3 Wind
| Term | Definition |
|---|---|
| Weather | the condition of Earth's atmosphere at a particular time and place |
| Atmosphere | the envelope of gases that surrounds he planet |
| Water Vapor | water in the form of gas |
| Density | amount of mass in a given volume of air |
| Air Pressure | the result of weight of a column of air pushing on an area |
| Barometer | an instrument that measures air pressure |
| Mercury Barometer | a long glass tube that is closed at one end and open at the other |
| Aneroid Barometer | air tight metal chamber |
| Altitude | distance above the sea level |
| trososphere | the first layer of the atmosphere |
| strasosphere | the second layer of the atmosphere and has the ozone layer |
| mesosphere | third layer of the atmosphere |
| thermosphere | last layer of the atmosphere and has no outer limit |
| ionsphere | lower layer of the thermosphere |
| exosphere | outer layer of the thermosphere |
| electromagnetic waves | a form of energy that can move |
| radiation | direct transfer of energy |
| infrared radiation | long wavelength for red light |
| ultraviolet radiation | short wavelengths for violet light |
| scattering | when particles and gas disperse in the atmosphere |
| Green House Effect | gas that holds in earth's atmosphere |
| tempature | average amount of energy of motion of each particle for a substance |
| thermal energy | measures the total energy of motion in the particles of a substance |
| thermometer | device that allows you to measure tempature |
| heat | is thermal energy that is transferred from a hotter object to a cooler one |
| convection | transfer of heat by a liquid |
| conduction | transfer of heat with two substances that are in direct contact |
| convection currents | upward movement of hot and the downward movement of cold air |
| wind | movement of air that is parallel to earth's surface |
| anemometer | measures wind speed |
| windchill factor | increased of air cooling |
| local winds | wind that blows over short distances |
| sea breeze | when local winds blow over a lake or ocean |
| land breeze | flow of air to land to ocean |
| global winds | winds that blow steadily from a specific directions over long distances |
| Coriolis effect | when wind curves cause of the earth's rotation |
| latitude | the distance from the equator |
| doldrums | calm area with no wind |