Learning Lesson: Measure the Pressure: The "Wet" Barometer

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Waterspouts in the Bahamas

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National Oceanic and Atmospheric Administration (NOAA), National Weather Service (NWS)


The amount of air over us is constantly changing. As a result, the weight of that air, called pressure, is constantly changing. These changes in air pressure are indications of changes in our weather. We measure this change using a device called a barometer (bar-meter or measurer).

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