Straws float in soda?

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Why do straws float in cups with soda but not in water? Is it the carbonation? If so, why?
Also, why does soda sometimes come out of the straw after drinking from the straw? Is it a vacuum that hasn’t been properly unsealed?

In: Physics

6 Answers

Anonymous 0 Comments

Also straws are generally made from polypropylene which has a density close to one. Thus it floats in water/soda

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