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Foley Weather
5/6th
| Question | Answer |
|---|---|
| atmosphere | envelope of gases that surround the earth |
| weather | the condition of the earth's atmosphere at a specific time and place |
| water vapor | water in a gas form |
| air pressure | the weight of the column of air pushing down on an area |
| barometer | instrument used to measure air pressure |
| inches | the units that a mercury barometer measures air pressure in. |
| altitude | distance above sea level |
| troposphere | layer of the atmosphere closes to earth |
| electromagnetic waves | energy from the sun that can move through the vacuum of space |
| infrared radiation | long wavelengths of energy |
| ultraviolet radiation | short wavelengths of energy |
| visible light | the wavelengths of energy that we can see |
| greenhouse effect | heating up of the earth's atmosphere due to an envelope of carbon dioxide gas that traps the sun's energy |
| thermometer | instrument used to measure temperature |
| wind | horizontal movement of air from area of high pressure to an area of low pressure |
| anemometer | instrument used to measure wind speed |
| local winds | winds that blow over short distances |
| global winds | winds that blow over long distances |
| doldrums | calm areas where warm air rises |
| prevailing westerlies | global winds that blow from west to east across North America |
| Jet stream | bands of high-speed winds high above the earth |
| relative humidity | the percentage of water vapor in the air as compared to how much the air can hold at that temperature |
| psychrometer | instrument used to measure relative humidity |
| clouds | formed when water vapor condenses to form liquids. Needs cooling and particles. |
| cirrus clouds | wispy, feathery clouds (curl of hair) |
| cumulus clouds | "heaps" of cloud - fluffy, rounded masses. |
| stratus clouds | spread out - flat layers of clouds. Create an overcast day. |
| precipitation | any type of water falling from the sky |
| air mass | huge body of air that has similar temperature, humidity and air pressure |
| tropical air mass | originates near the tropics - has warm air |
| polar air mass | originates near the poles - has cold air |
| maritime air mass | originates over oceans -has high humidity |
| continental air mass | originates over land - dry air |
| fronts | the boundary where air masses meet |
| warm front | formed when a warm air mass moves into a cold air mass |
| cold front | forms when a cold air mass moves into a warm air mass |
| occluded front | forms when a warm air mass is trapped between two cold air masses and gets pushed up |
| stationary front | occurs when a cold and warm air mass are stalled and do not move. |
| cumulonimbus clouds | type of clouds where thunderstorms form |
| tornado | rapidly whirling, funnel shaped cloud that touches earth's surface |
| hurricane | storm that originates over a warm, open ocean |
| meteorologist | scientist who study and predict weather |
| isobar | lines that connect areas of equal pressure |
| Griggs Putnam index of deformity | a measure of wind speeds |
| Fujita scale | scale used to measure tornado speeds and damage |
Created by:
cheryl foley
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