Pop Rocks, Pixy Stix, and Density

Pop Rocks usually sink in water. But if you stir enough Pixy Stix into the water (making it denser), some of the Pop Rocks float.

Pop Rocks float in Pixy Stix water (green) but sink otherwise (pink)

This is another fun discovery we made when I let kids play around with the candy. Thanks, cousins!

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