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What is an experiment that includes dry ice?

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An experiment that includes dry ice is making frozen bubbles. This activity makes use of the fact that dry ice is solidified carbon dioxide. In this project, dry ice is used to freeze bubbles, making it possible for students to hold and examine them. This experiment requires dry ice in a container, bubble solution and gloves.

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After letting carbon dioxide gas accumulate in the container for about five minutes, bubbles are blown into it. The bubbles then sink as they cool. When a bubble touches a chunk of dry ice, it freezes. This happens because some of the air inside the bubble is replaced by carbon dioxide gas from the dry ice.

Those planning on doing this activity should bear in mind that dry ice can cause frostbite, so gloves should always be used when handling it.

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