the explosion between mentos and baking soda jennifer z., sally g., tiffany t
TRANSCRIPT
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The Explosion Between Mentos and
Baking Soda Jennifer Z., Sally G., Tiffany T.
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Question
What is the measure of pressure after we put Mentos and Baking Soda in Pepsi and Coca-Cola?
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Introduction Purpose: To find out what will happen when
we put mentos in the Pepsi and Coca-Cola.
To find out what will happen when we put baking soda in the Pepsi and the Coca-Cola.
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Hypothesis
We think that when we put the Mentos in the soda it will have more pressure than when we put the Baking Soda in the soda.
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Materials List
6 balloons Measuring Cups 6 bottles of Coca Cola 6 bottles of Pepsi 3 packs of Mentos Baking Soda String of yarn Meter Stick
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Experimental Procedure Preparing the Lab for Mentos Trial 1. Place the garbage bags on the floor.2. Put the soda (Pepsi or Coca Cola) on top of
the garbage bag 3. Take out seven Mentos and put it in the soda
all at once4. After the explosion of the soda messure the
pressure of the Mentos by measuring how much soda is left with the measuring cup
5. Clean up Mess!
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Experimental Procedure (cont.) Preparing the Lab for Baking Soda Trials 1. Fill the balloon up with 2 tablespoons of Arms and
Hammers Baking Soda 2. Place the balloon on top of the soda bottle (Pepsi or Coca
Cola) 3. Hold the balloon and pour the baking soda 4. When the balloon stops to fill up with carbon dioxide or
soda, measure the diameter by using the string 5. When finish measuring the diameter of the balloon, write it
down 6. Clean up Mess
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Our Set Up Baking Soda
Mentos
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Experimental Parameters Independent Variable:
-the amount of soda released from the bottle
Dependent Variable:-the Mentos and Baking Soda
Constants: -the amount of Mentos and the amount of Baking Soda
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Results Trials
Types of Soda Mentos (how much soda is remaining in the bottle)
Baking Soda (the diameter of the balloon)
Pepsi 25 oz. 59 cm.
28 oz. 60 cm.
25 oz. 65 cm.
Coca-Cola 24.5 oz. 55 cm.
25 oz. 59 cm.
26 oz. 60 cm.
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Conclusion The data we collected does support that the
Pepsi has more pressure when we put the baking soda and the Mentos in it.
AVERAGE Type of Soda Mentos Baking Soda
Pepsi 26 oz. 61.33 oz.
Coca-Cola About 25.17 oz 58 oz.
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Conclusion: Science Content We found out that the Pepsi had more
pressure than the Coca-Cola after we put the Baking Soda in both sodas.
We also found out that the Pepsi also had more pressure than the Coca-Cola after we put the Mentos in both sodas.
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Sources of Error We used the wrong amount of soda: human
error Not all the liquid was poured out of the
soda when measuring the pressure after the Mentos experiment: human error
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Further Questions to Investigate What is in the baking soda that makes the
soda's explode? What is in matte finish that makes the
explosion?