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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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Science fair topic

Science Fair Topic

By: Jhaley Rhodes

1st period

October 24,2011


Science fair topic

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

Purpose Of Experiment:

To figure out if all sodas have the same types of carbonated pH.


Hypothesis

Hypothesis:

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


Materials

Materials:


Expireiment

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.


Results

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.


Conclusion

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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