WAIT GRANDMA!!! Grandma almost broke my homemade barometer to can and store some of her garden frown veggies. Sacrificing science for food normally isn't a problem, but this time I have a grade on the line. Now, a homemade barometer is merely as simple as placing a balloon on a glass jar. There are just a few tricks to the trade to make your life easier though. Watch the following video for those SMALL tips.
Nice and correct way
Slightly creepy way
Using the the straw to measure and observe changes, after calibration, will give you a heads up on the weather man/woman for when to grab that rain coat or umbrella!
Below you will see the data collected from our barometer study. The homemade barometer seemed to be relatively accurate once calibrated but didn't give one or two inaccurate points.
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