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Lewis-Weather
Question | Answer |
---|---|
what's happening in the atmosphere at a certain time and place | weather |
a measure of the average amount of motion of molecules; faster motion = warmer temperatures | temperature |
instrument used to measure wind speed | anemometer |
instrument used to measure temperature | thermometer |
instrument used to measure wind direction | wind vane (weather vane) |
instrument used to measure relative humidity | psychrometer |
amount of water vapor in the air | humidity |
amount of water vapor in the air compared to the amount needed for saturation (PERCENTAGE) | relative humidity |
the TEMPERATURE at which air is saturated and condensation forms | dew point |
the constant cycling of all waters on Earth | the water cycle |
process in which liquid water changes to water vapor (liquid to gas) | evaporation |
process of water vapor changing to a liquid water (gas to liquid) | condensation |
any form of water that falls from clouds (rain, snow, sleet, hail) | precipitation |
a large body of air with similar temperature and humidity levels | air mass |
instrument used to measure air pressure | barometer |
an imaginary boundary between two air masses of different temperature or moisture levels | front |
a violent,rotating column of air caused by winds at different heights blowing in different directions and at different speeds | tornado |
large, swirling low-pressure system forming over tropical (warm) waters with wind speeds greater than 74 mph | hurricane |
area of calm in the center of a hurricane | eye |
a person who studies the weather | meteorologist |
collection of symbols showing weather conditions at a specific location | station model |
line connecting areas of equal temperature | isotherm |
line connecting areas with equal air pressure | isobar |