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The Screaming Quarter!

Spooky Science

So why is dry ice called dry ice? Dry ice is the “frozen” form of the gas, carbon dioxide. While it may be called ice – it never melts – it goes right from being a solid to being a gas. This is called SUBLIMATION. When I put the quarter on the dry ice, it cause it to turn into a gas very quickly. As the gas escaped around the sides of the quarter, it caused it to vibrate quickly and make that cool screaming sound.

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