COMSTOCK PARK, Mich. — Rising air is all around us— outside and inside. It's what meteorologists call "convection." Warm air is lighter and less dense than cold air, so it has buoyancy and wants to ...
Get enough hot water ready for this entire experiment before you start. Once you start pouring the water, this moves quickly. Fill the 2 liter bottle with hot water, swirl it around to make the bottle ...
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