The Little Shop team experiments with putting different objects in different fluids and seeing which float. Helium filled bubbles in the air and granite in mercury metal! Does it float?

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There’s nothing intrinsically “floaty” about helium. You can make a helium balloon that sinks, if it’s cold enough, as we see in this video.

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The Little Shop of Physics Crew plays bounce off of a 3.7 meter (approximately 12-foot) beach ball in order to show that air does indeed have mass.

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