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Water barometers Project Ideas

(1) Weather and barometers Wall weater glass.

Water barometers all have one basic purpose - to measure changes in atmospheric pressure in order to foretell the weather. If you're unfamiliar with water barometers, check out our Water Barometers 101 on the physics tutorial page.

Keep a log of the narrow tube water level and any weather changes. Sketch the type of clouds that you see in the sky. In most parts of the country, recordings taken over a month should be sufficient to produce good results.

How did the water level vary in relationship to the weather and the clouds?

Test your conclusions. Try making a daily weather forecast from what you've learned.

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Wall weater glass.
(2) Water barometer science

Learn about the science behind a water barometer. Our physics tutorials page has information to help you get going.

Once you understand the basic science, try designing a water barometer of your own. Make certain to test your barometer to determine its accuracy in predicting the weather.

Spring green swan. (3) Historical aspects

Storm glass, water barometer, weather glass. Whatever you call it, the water barometer has a rather long history.

This blown glass swan barometer was a delightful way for young people in the 1800's to learn how atmospheric pressure and weather are related.

Some historians believe that the Pilgrims brought weather glasses with them when they came to North America.

Research into this aspect of the water barometer could make for a nice combination history and science project.

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