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Science Fair Topic

Science Fair Topic. By: Jhaley Rhodes 1 st period October 24,2011. My topic for the Texas Middle School 2011 Science Fair is: Do different types of carbonated soda have different types of pH?. Purpose Of Experiment:. To figure out if all sodas have the same types of carbonated pH.

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Science Fair Topic

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  1. Science Fair Topic By: Jhaley Rhodes 1st period October 24,2011

  2. My topic for the Texas Middle School 2011 Science Fair is: Do different types of carbonated soda have different types of pH?

  3. Purpose Of Experiment: To figure out if all sodas have the same types of carbonated pH.

  4. Hypothesis: I think they all have the same types of carbonated pH.

  5. Materials:

  6. Expireiment: While conducting this experiment, I first drank a portion of all the soda I had selected. They all had a acidy taste to them. While trying to test the pH, I tried to differ from the acidy taste. Some, were less than others. So I did some research. I seemed very lost there, so I looked on the back of each can, and saw that, on every can there were different percentages. So I then put each soda pop into a bottle, put on my safety goggles, and shook the bottle. Acid is normally really fizzy, so you should be able to differ from there. After I was done shaking, they all seemed to fizzle up less and more than others. They also settled down faster or slower than others.

  7. Results: Sprite had a pH level of 3.29, Mountain Dew had a pH level of 3.27, Coca-Cola had a pH level of 2.52, Dr. Pepper had a pH level of 3.6, and Pepsi had a pH level of 2.61.

  8. Conclusion: Even though all sodas may look the same or taste the same, not all of the same things consist in them. My tested hypothesis goes to show that I however was incorrect. All sodas do not have the same pH level.

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