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Acidic Soda

CYSF · 2025

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Overview

I will put a marshmellows in soda to see which is the most acidic

Problem

I'm doing this experiment to see how acidic soda is to you because if I use marshmallows it will show if it dissolves quick it won’t take a lot of time to do the same to your stomach

Method

Manipulated / Independent Variable

ONE thing that you will test/change:

Which soda i put in the jar

Coca Cola

Crush

Mountain Dew

Responding /Dependent Variable

The thing I think will change or be affected: The Marshmallow

How will you measure it? :

How fast will it dissolve in soda

Controlled Variables

Things we have to be very careful to keep the same every time we test so that they do not affect the results/outcome of the experiment:

Jars ,Stopwatch, tape, amount of soda, size of marshmallow

• Coca cola

• Crush

• Mountain Dew

• Jars

• Marshmallow’

• Tape

• Timer

• Tape marshmallows to a jar

• Fill jars with soda (1 cup) and start timer

• Turn off timer when it dissolves

Research

.

About crush.

Crush is a soda brand that is owned and operated by Keurig Dr Pepper

Did you know that crush was made by a chemist.

About Coke.

Coke is a soda brand owned and founded Dr.John S, Pemberton he is a pharmacist

Coke was made with the syrup and the recipe was kept for years until was replaced which got lots a lot of backlash so they brought the old recipe back and they had it sense

About Mountain Dew

Mountain Dew was created,owned and founded by Barney and Ally Hartman as a mixer

Marshmallow ingredients -sugar -corn syrup -modified corn syrup -gelatin -water -vanilla -blue 1 (artificial color) - dextrose -tetrasodium pyrophosphate extract

• may help in the future parts of this experiment

Mountain Dew ingredients -carbonated water -Sugers(sugar glucose-fructose) -Natural flavor -citric acid - sodium benzoate -caffeine -sodium citrate -gum arabic -erythorbic acid -calcium disodium EDTA - Tartrazine

Coca Cola ingredients -carbonated water -sugar/glucose-fructose -caramel color -phosphoric acid -natural flavor -caffeine - secret recipe

Crush ingredients -carbonated water -sugar/glucose-fructose -citric acid -benzoate -Natural flavor -modified corn starch -Ester gum -sunset yellow FCF -salt -allura red

• These also may help

Title | Author | Information (web link, publisher, etc) | Year

About crush | Does not show | Soda lovers wiki and bottle https://soda-loverswiki.fandom.com/wiki/Crush | 2025

About Coke | The coca cola company | The Coca Cola Company and bottle https://www.coca-colacompany.com/about-us/history/the-history-of-the-coca-cola-contour-bottle | 2025

About Mountain dew | Does not show | Wikipedia and bottle https://en.wikipedia.org/wiki/Mountain_Dew | 2025

| | |

Data

Coca cola | Would not dissolve

Mountain dew | Would not dissolve

Crush | Would not dissolve Observations/Notes: it grew a bit but There is something in the marshmallows that keep it from dissolving i think in trial 2 I will have to use a different variable to see if it will dissolve unlike the marshmallows.

Conclusion

My theory is that the gelatin was the component that stopped it from dissolving because one time when i was at my friends house me and him were eating jello but he dropped some in soda while he was putting it away and then the next day (24 hours later) he called me and said bro i left jello in my soda

I did my research and the only thing i found was soda fluffs witch use marshmallow fluff so i had to use a mix of the soda with some welch's fruit jelly snacks i had left over from halloween it sat there for days and i now know what happened.the gummies absorbed it and grew just like the marshmallows if you want more proof search up sprite gummy hack. So in conclusion the gelatin was the problem in the experiment

My question was:how fast does a marshmallow dissolve in soda

The answer to my question is: no it won’t even dissolve in soda because of the gelatin inside of the marshmallows

My hypothesis was correct because:

OR

My hypothesis was incorrect because: of the gelatin inside because it won't dissolve in soda

All in all it was a fail because of the gelatin because gelatin will not dissolve it absorbs the soda that was a key component I forgot while doing the experiment that could have helped before so i conclude that this was a big fail

Citations

Title | Author | Information (web link, publisher, etc) | Year

About crush | Does not show | Soda lovers wiki and bottle https://soda-loverswiki.fandom.com/wiki/Crush | 2025

About Coke | The coca cola company | The Coca Cola Company and bottle https://www.coca-colacompany.com/about-us/history/the-history-of-the-coca-cola-contour-bottle | 2025

About Mountain dew | Does not show | Wikipedia and bottle https://en.wikipedia.org/wiki/Mountain_Dew | 2025

Acknowledgement

Thank you to the people who helped me Miss Nanji,Miss Olfert, Miss Duncan,Miss Kim,My sister Aneet

Awards (1)

  • HONOURABLE MENTION

Competition history

  • CYSF 2025 Category not listed

Resources

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Source: Calgary Youth Science Fair

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