A broken barometer caused a mercury spill about the size of a quarter or 50-cent piece in a science classroom at Burnsville High School today. Principal Dave Helke e-mailed a daily bulletin that ...
The Climate Classroom: Make your own barometer Here's how to make your own barometer - a family-friendly experiment to learn about how air pressure changes change the weather where you live ...
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The Climate Classroom: Make your own barometer
Here's how to make your own barometer - a family-friendly experiment to learn about how air pressure changes change the weather where you live Fact check: Trump repeats numerous false claims in ...
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