Pop rocks are known as the exploding candy, and if you ate Pop Rocks as a kid, you probably remember the legend...if you eat Pop Rocks and then drink a soda, you'll explode. The Food and Drug Administration even set up a telephone hotline to assure anxious parents that the popping candy would not cause children to explode. While you can mark this one up as an urban legend (in other words, it's not true), there is some interesting science behind the world famous popping candy.
Problem
Will there be a chemical reaction between Pop Rocks and soda, and Pop Rocks and vinegar?
Hypothesis
The balloon will fill up with gas because of the carbon dioxide in the Pop Rocks reacting with the chemicals in the soda and in the vinegar.
Results
With the soda, the balloon expanded more rounded and not as tall. It was a potential chemical reaction, meaning it needed to be shook a little for a reaction to take place. Once we started shaking the soda with the Pop Rocks, the balloon almost immediately started expanding. It took about 3 minutes for the balloon to stop expanding. With the vinegar, the bottle didn't need to be shaken, because it just started reacting immediately. The balloon also expanded taller and less rounded than the soda one.
Conclusion
My hypothesis was correct; the balloon did fill up with gas. The gas that it filled up with was the carbon dioxide that the Pop Rocks released when they exploded in the water. While doing the vinegar test, while putting the balloon on the empty soda bottle, the bottle tipped over and the vinegar spilled out. I think we may have gotten a different reaction if that didn't happen, because with the vinegar spilled out some of the chemicals in it. We also had an uneven amount of vinegar and water. If that didn't happen, I think there would have been a chemical reaction, and the balloon would blow up even bigger. For the soda test, I think the type of soda had an effect on the reaction, because some sodas have more chemicals in them than others.
Problem
Will there be a chemical reaction between Pop Rocks and soda, and Pop Rocks and vinegar?
Hypothesis
The balloon will fill up with gas because of the carbon dioxide in the Pop Rocks reacting with the chemicals in the soda and in the vinegar.
Results
With the soda, the balloon expanded more rounded and not as tall. It was a potential chemical reaction, meaning it needed to be shook a little for a reaction to take place. Once we started shaking the soda with the Pop Rocks, the balloon almost immediately started expanding. It took about 3 minutes for the balloon to stop expanding. With the vinegar, the bottle didn't need to be shaken, because it just started reacting immediately. The balloon also expanded taller and less rounded than the soda one.
Conclusion
My hypothesis was correct; the balloon did fill up with gas. The gas that it filled up with was the carbon dioxide that the Pop Rocks released when they exploded in the water. While doing the vinegar test, while putting the balloon on the empty soda bottle, the bottle tipped over and the vinegar spilled out. I think we may have gotten a different reaction if that didn't happen, because with the vinegar spilled out some of the chemicals in it. We also had an uneven amount of vinegar and water. If that didn't happen, I think there would have been a chemical reaction, and the balloon would blow up even bigger. For the soda test, I think the type of soda had an effect on the reaction, because some sodas have more chemicals in them than others.
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