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Ask Dr. Universe: Why does soda fizz?

Dr-Universe-230PULLMAN, Wash. – If you’ve ever had flat soda, you know a sip isn’t the same without some fizzy bubbles. We can hear them pop and feel them burst on our tongue.

I wondered if there was some secret ingredient that made soda bubbly. My friend Kenny McMahon, who researches food science here at Washington State University, and I decided to investigate.

We grabbed a balloon, a bottle of soda and salt. We filled the balloon with about a teaspoon of salt. Then, we twisted the cap off the bottle and stretched the balloon over the top. When the balloon was secure, we tipped in the salt.

Read all of this answer from Dr. Universe at https://askdruniverse.wsu.edu/2016/05/09/soda-why-does-it-fizz/.

 

A service of Washington State University, Ask Dr. Universe answers some of the most interesting, tough and smart questions from curious kids all around the world.

 

 

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