A barometer, according to Wikipedia, is a scientific instrument used to measure atmospheric pressure. At sea level, the atmospheric pressure will be 1 atmosphere or 760 mmHg (millimeters of Mercury). The photo below displays our attempt to build a homemade barometer. Unfortunately, our experiment failed because the balloon would not stay sealed around the glass bowl.
Interested in creating your own barometer? Here is tutorial for another way to construct your own!
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