Movie courtesy of the Little Shop of Physics.

Snuff It! with CO2

This episode of "Science It Up!" from the Little Shop of Physics demonstrates how carbon dioxide gas is more dense than air. To show this, they snuff out the flames of candles invisibly - with the help of some "dry ice". You can't see their carbon dioxide gas, but you can prove that it's there when you watch the flames go out.

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Last modified January 18, 2011 by Randy Russell.

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