Sody pop and mentos
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Sody pop and mentos l.jpg

Sody-Pop and Mentos


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History of Mentos

  • First popularized by Steve Spangler on 9News in 2005. which resulted in Internet coverage of the incident

    • (Slide show of mentos and cokes with audio in backround)

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History of Mentos

  • Every since then people have posted thousands of videos on you tube

    • (explosion montage)

  • Even Discover channel got in on the action and had an entire episode of mythbusters dedicated to mentos

    • (picture of mythbuster guys)

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Chemical Explanation

  • The driving force behind mentos and coke is a process called nucleation

    • (explosion montage continued)

  • In other words, Nucleation is the formation of CO2

    • (explosion montage continued)

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Chemical Explanation

  • The surface of the mint Mentos is littered with many small holes, allowing CO2 bubbles to form very rapidly and in great quantity, eventually causing a violent jet of soda

    • Close up of mentos

  • colored mentos have a wax glazing on them which inhibits the magnitude of the explosion

    • Side by side comparison of mentos

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Experiment Proving CO2 is driving force behind nucleation

  • Here we are testing whether or not CO2 plays a role in the jet effect

    • (experiment in backround)

  • As we shake the soda, the balloon expands. The gas filling the balloon is CO2

    • (experiment)

  • When we place the mentos into the soda, there is no reaction because there is no CO2

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Other Sodas

  • However, is the CO2 the only factor in creating the jet effect ?

    • (Pan out to other soda experiments)