Abstract
We studied how mentos and diet coke react. It was a interesting experiment and we wanted to compare how much liquid would be left if we put dimples, tiny holes, in the mentos. When we started the experiment we had to buy the supplies and then dig the dimples in the mentos. After that, we had to prepare to add the mentos in with the diet coke bottles. When the mentos entered the bottle, a geyser erupted quickly (HIskey, 2010). The geyser goes up like a fountain with really fizzy and dark liquid. The more dimples in a mentos, the less higher the geyser went. This meant more liquid left over. When we took the mentos out, we saw that the outer layer of the mentos was gone. Only a white layer of mentos was left. When we were done conducting experiment, our hypothesis was accurate. The more dimples a mentos had, the more liquid it would have leftover. One day people could use this experiment to help the environment like making a machine vehicle with mentos and diet coke.
Purpose
The purpose of this experiment was to see if the number of dimples in a mento would effect the amount of Diet Coke leftover. This experiment can be fun and educational, teaching you about a physical reaction that involves mentos and diet coke. People can use physical reaction to learn to create a new product and learn why a physical reaction takes place when a certain event occurs.
History
Mixing candy with soda was an early form of entertainment for kids in the old days, around the 1950s (Mythbusters, 2006). They did not have mentos and diet coke to make these huge geysers that we have today though. They used peanuts and soda to get this little fizz of bubbles and that would look interesting. As time went on, people forgot how about the peanuts and soda. In 2006, Mythbusters was asked to do a experiment to test that if someone put mentos and diet coke together, it would explode (Mythbusters, 2006). They tried the experiment and it succeeded. Everyone saw the experiment through the television and that’s when the experiment got famous. Now many curious kids around the world are trying the experiment to see the huge geyser shoot out of a Diet Coke bottle.
Process
When Diet Coke mixes with mentos, a physical reaction takes place. A geyser erupts because when coke and mentos come in contact with each other, it creates carbon dioxide, which has nowhere to go but outside of the soda bottle. The carbon dioxide exits the bottle and becomes pressurized. The carbon dioxide shoots out to create a big, brown, and fizzy geyser. The leftover fizz gets vaporized and dissolves and rises up with the geyser into the air, outside the bottle. If you were to remove the mentos, you would see that one layer of aspartameand potassium have been dissolved-layer of color was gone. the diet Coke contains potassium benzoate which will help create more carbon dioxide when the reaction happens. When you add the mentos into the soda, it gets carbonated until it can no longer hold. This experiment is has alot to do with nucleation, which is where bubbles keep forming and is where all the foamy fizz is created (Freed,2011). The bottle becomes so dense that it explodes. The surface tension of the mentos expands the liquid and gets ready for the geyser to erupt. the reaction happens instantly and starts the process.
Applications
People can use physical reaction to learn to create a new product and learn why a physical reaction takes place when a certain event occurs. They have been making videos on YouTube on how to conduct the experiment and have fun. On YouTube, many have made videos of them conducting different mentos and diet coke experiments.(Tash 2007). For example Steve Spangler has tried to show people how he does the experiment and he has gotten thousands of views. Others have also tried to make the mentos and diet coke experiment a challenge. They put mentos in there mouth and gulp down some diet coke in their mouths, then a physical reaction takes place in their mouth that looks painful.
Glossary 1. Aspartame: An artificial, non-saccharides sweetener used as a sugar substitute in some foods and beverages.
2. Carbonation: Saturation with carbon dioxide, as in the making of soda water.
3. Density: Mass per unit volume.
4. Nucleation: The process of providing sites for new bubbles to form in a liquid that is boiling or supersaturated with gas; new droplets to condense from a supersaturated vapor. or new crystals to form in a supersaturated solution. Nucleation sites can be scratches in a surface, dust particles, seed crystals and so on.
5. Physical Reaction: the change in the appearance of a substance in which it can change back to it's original state.
6. Potassium Benzoate: a food preservative that inhibits the growth of mold, yeast and some bacteria
7. Pressurized: maintained at an atmospherics pressure higher than that of the surroundings.
8. Sensation: the operation or function of the senses This was not mentioned in research report above)
9. Surface Tension:The work required to expand the surface of a liquid by unit area.
10. Vaporized: to be converted into vapors
Independent Variable: The dimples on the mentos. Dependent Variable: Amount of Diet Coke left over. Control Variables: Amount of mentos put in, how the mentos are put in, and mentos flavor.
Problem
Does the number of dimples in a mentos affect how much liquid is leftover after the physical reaction?
Hypothesis
If more dimples are added to the mentos, then there will be more liquid leftover in the soda bottle after the physical reaction.
Materials
3 packages of mentos
2 index cards
(15) 2 liter bottles of Diet Coke.
1 sharp nail
outdoor space
Camera
3 Beakers
Procedure
Organize your mentos candies and all other materials. Take out all materials and lay them down on a flat, open surface.
Open one pack of mentos. Use a sharp nail to dig 5 dimples into all the mentos in that package. Do the same for another pack of mentos but this time dig only 1 dimple in each mentos.
Lay down three 2 liter soda bottles on a flat surface outside, next to a wall. Make sure that they are at least 30 cm away from each other and are aligned straight.
Prepare a camera to take a picture.
Pour one pack of mentos with no dimples into one diet coke bottle. To do this, have an open mentos package. Use an index card to cover both the mentos package and the diet coke bottle. When you are ready, quickly pull out the index card and let the mentos fall into the soda.
Repeat steps 5-9 but use a mentos package with a different amount of dimples in each mentos, for different soda bottles (break this down to more specific steps).
Pour the leftover liquid from one soda bottle into a beaker. Do this for all the soda bottles but in seperate beakers. Be sure to mark which soda bottles are 1 dimpled mentos, 5 dimpled mentos, and no dimpled mentos. Measure each amount of liquid leftover from the bottle in seperate beakers and record. Record the data from each soda bottle and compare which had the most liquid leftover and least liquid leftover.
Reflection
Our science fair project was very fun and interesting. We researched and learned about an amazing physical reaction that took place when mentos and diet coke came in contact. A geyser of diet coke would shoot out of the soda bottle if mentos was to be added. Our hypothesis was that the more dimples in a mentos, the more liquid would be leftover after the reaction. We thought that the physical reaction was extraordinary.
We tried the experiment and took a lot of time to poke dimples into 2 packs of mentos. When we deposited a mentos package into the diet coke bottle, a geyser immediately erupted, shooting out diet coke and carbon dioxide. We conducted 5 trials, each trial proved their hypothesis correct- the more dimples in a mentos, the more liquid would be leftover. We took pictures before, during, and after the reaction.
Conclusion
In the end, our hypothesis was correct; the results proved that the more dimples a mentos had, the more liquid was leftover after the physical reaction. When conducting the experiment, there were a few problems. The first one was the amount of time it took to dig dimples into the mentos. It was hard to dig a full dimple into the mentos without ruining the mentos shape. Another problem was dropping the mentos into the diet coke bottles. Sometimes the mentos package would be clogged when dropping the mentos, only allowing a few mentos to drop in. This made the physical reaction incomplete, as it did not include all the mentos. Next time, instead of using a screw driver to dig the dimples into the mentos, a sharp tiny nail should be used. For the problem with dropping the mentos, a small tube should be used. I suggest this experiment for people that love mentos or diet coke.
Analysis There were different amounts of liquid left over after the experiment. The more dimples a mentos had, the more liquid would be left over. (add numbers from your data table) The reason for that is because when you poke the dimples in to the mentos, it takes out parts of the mentos outer layer which is the sugary shell that creates the geyser when interacted with diet coke (<--this sentence goes in your conclusion). The data shows that the more dimples there were in a mentos, the more diet coke there would be left over (use numbers to back up statements), where no dimples was the least amount of liquid left and where the 5 dimpled mentos was the most liquid remaining. Rubric for 2e.
Your Points
Total Points
Purpose
3.5
5
History
3.5
5
Process
2.5
5
Future (Current Applications)
3
5
Glossary (10, abc)
5
5
Works Cited
4.5
5
Total
22
30
Rubric for 2f- deadline extended to 4/30 You will get Tuesday class time (4/30) to make any additional revisions. Must use 3rd person AND in-text citations for Purpose, History, Process, & Applications paragraphs.
Pts. Earned
Pts. Possible
Abstract (Q1-2)
3.5
5
Purpose
3
5
History
3.5
5
Process
3.5
5
Applications (Formerly Future)
3.5
5
Reflection (about research AND lab)
3
5
Glossary
4
5
Works Cited
3.5
5
Total
27.5
40
Rubric for 5-6ab- deadline 5/3 You will get class time (4/30 & 5/2) to make additional revisions to your wikispace page.
Abstract
We studied how mentos and diet coke react. It was a interesting experiment and we wanted to compare how much liquid would be left if we put dimples, tiny holes, in the mentos. When we started the experiment we had to buy the supplies and then dig the dimples in the mentos. After that, we had to prepare to add the mentos in with the diet coke bottles. When the mentos entered the bottle, a geyser erupted quickly (HIskey, 2010). The geyser goes up like a fountain with really fizzy and dark liquid. The more dimples in a mentos, the less higher the geyser went. This meant more liquid left over. When we took the mentos out, we saw that the outer layer of the mentos was gone. Only a white layer of mentos was left. When we were done conducting experiment, our hypothesis was accurate. The more dimples a mentos had, the more liquid it would have leftover. One day people could use this experiment to help the environment like making a machine vehicle with mentos and diet coke.
Purpose
The purpose of this experiment was to see if the number of dimples in a mento would effect the amount of Diet Coke leftover. This experiment can be fun and educational, teaching you about a physical reaction that involves mentos and diet coke. People can use physical reaction to learn to create a new product and learn why a physical reaction takes place when a certain event occurs.
History
Mixing candy with soda was an early form of entertainment for kids in the old days, around the 1950s (Mythbusters, 2006). They did not have mentos and diet coke to make these huge geysers that we have today though. They used peanuts and soda to get this little fizz of bubbles and that would look interesting. As time went on, people forgot how about the peanuts and soda. In 2006, Mythbusters was asked to do a experiment to test that if someone put mentos and diet coke together, it would explode (Mythbusters, 2006). They tried the experiment and it succeeded. Everyone saw the experiment through the television and that’s when the experiment got famous. Now many curious kids around the world are trying the experiment to see the huge geyser shoot out of a Diet Coke bottle.
Process
When Diet Coke mixes with mentos, a physical reaction takes place. A geyser erupts because when coke and mentos come in contact with each other, it creates carbon dioxide, which has nowhere to go but outside of the soda bottle. The carbon dioxide exits the bottle and becomes pressurized. The carbon dioxide shoots out to create a big, brown, and fizzy geyser. The leftover fizz gets vaporized and dissolves and rises up with the geyser into the air, outside the bottle. If you were to remove the mentos, you would see that one layer of aspartameand potassium have been dissolved-layer of color was gone. the diet Coke contains potassium benzoate which will help create more carbon dioxide when the reaction happens. When you add the mentos into the soda, it gets carbonated until it can no longer hold. This experiment is has alot to do with nucleation, which is where bubbles keep forming and is where all the foamy fizz is created (Freed,2011). The bottle becomes so dense that it explodes. The surface tension of the mentos expands the liquid and gets ready for the geyser to erupt. the reaction happens instantly and starts the process.
Applications
People can use physical reaction to learn to create a new product and learn why a physical reaction takes place when a certain event occurs. They have been making videos on YouTube on how to conduct the experiment and have fun. On YouTube, many have made videos of them conducting different mentos and diet coke experiments.(Tash 2007). For example Steve Spangler has tried to show people how he does the experiment and he has gotten thousands of views. Others have also tried to make the mentos and diet coke experiment a challenge. They put mentos in there mouth and gulp down some diet coke in their mouths, then a physical reaction takes place in their mouth that looks painful.
Glossary
1. Aspartame: An artificial, non-saccharides sweetener used as a sugar substitute in some foods and beverages.
2. Carbonation: Saturation with carbon dioxide, as in the making of soda water.
3. Density: Mass per unit volume.
4. Nucleation: The process of providing sites for new bubbles to form in a liquid that is boiling or supersaturated with gas; new droplets to condense from a supersaturated vapor. or new crystals to form in a supersaturated solution. Nucleation sites can be scratches in a surface, dust particles, seed crystals and so on.
5. Physical Reaction: the change in the appearance of a substance in which it can change back to it's original state.
6. Potassium Benzoate: a food preservative that inhibits the growth of mold, yeast and some bacteria
7. Pressurized: maintained at an atmospherics pressure higher than that of the surroundings.
8. Sensation: the operation or function of the senses
This was not mentioned in research report above)
9. Surface Tension:The work required to expand the surface of a liquid by unit area.
10. Vaporized: to be converted into vapors
Work Cited
Bora, M. "How Things Work, Mentos in Diet Coke." 19 February 2013. Scientific American. http://scientificamerican.com/article.cfm?id=bring-science- of-mentosdiet-coke-explosions-explained.html.
"Diet Coke & Mentos Eruption" No Date. Science Kids. www.sciencekids.co.nz/experiments/original-mentos-diet-coke-geyser.
Hazel, M. "Science of mentos-diet coke explosions explained" 12 June 2008. Newscientist. http://www.newscientist.com/article/dn14114-science-of-mentosdiet-coke-explosions-explained.html
Hiskey, D. "Why Do Mentos and Diet Coke React?" 16 November 2012. TodayIfoundout. http://www.todayifoundout.com/index.php/1012/11/why-do-mentos-and-diet-coke-react.
"Mentos Diet Coke and Diet Coke React" 16 February 2013. Science Buddies. http://mentalfloss.com/article/48759/why-do-diet-coke-and-mentos-react.
"MythBusters Take a Stab at the Mentos Madness" 10 August 2006. Mentos Geyser. http://www.stevespangler.com/mentos-experiment/mythbusters-take-a-stab-at-the-mentos-madness/
Independent Variable: The dimples on the mentos.
Dependent Variable: Amount of Diet Coke left over.
Control Variables: Amount of mentos put in, how the mentos are put in, and mentos flavor.
Problem
Does the number of dimples in a mentos affect how much liquid is leftover after the physical reaction?
Hypothesis
If more dimples are added to the mentos, then there will be more liquid leftover in the soda bottle after the physical reaction.
Materials
Procedure
Reflection
Our science fair project was very fun and interesting. We researched and learned about an amazing physical reaction that took place when mentos and diet coke came in contact. A geyser of diet coke would shoot out of the soda bottle if mentos was to be added. Our hypothesis was that the more dimples in a mentos, the more liquid would be leftover after the reaction. We thought that the physical reaction was extraordinary.
We tried the experiment and took a lot of time to poke dimples into 2 packs of mentos. When we deposited a mentos package into the diet coke bottle, a geyser immediately erupted, shooting out diet coke and carbon dioxide. We conducted 5 trials, each trial proved their hypothesis correct- the more dimples in a mentos, the more liquid would be leftover. We took pictures before, during, and after the reaction.
Conclusion
In the end, our hypothesis was correct; the results proved that the more dimples a mentos had, the more liquid was leftover after the physical reaction. When conducting the experiment, there were a few problems. The first one was the amount of time it took to dig dimples into the mentos. It was hard to dig a full dimple into the mentos without ruining the mentos shape. Another problem was dropping the mentos into the diet coke bottles. Sometimes the mentos package would be clogged when dropping the mentos, only allowing a few mentos to drop in. This made the physical reaction incomplete, as it did not include all the mentos. Next time, instead of using a screw driver to dig the dimples into the mentos, a sharp tiny nail should be used. For the problem with dropping the mentos, a small tube should be used. I suggest this experiment for people that love mentos or diet coke.
Analysis
There were different amounts of liquid left over after the experiment. The more dimples a mentos had, the more liquid would be left over. (add numbers from your data table) The reason for that is because when you poke the dimples in to the mentos, it takes out parts of the mentos outer layer which is the sugary shell that creates the geyser when interacted with diet coke (<--this sentence goes in your conclusion). The data shows that the more dimples there were in a mentos, the more diet coke there would be left over (use numbers to back up statements), where no dimples was the least amount of liquid left and where the 5 dimpled mentos was the most liquid remaining.
Rubric for 2e.
Rubric for 2f- deadline extended to 4/30
You will get Tuesday class time (4/30) to make any additional revisions.
Must use 3rd person AND in-text citations for Purpose, History, Process, & Applications paragraphs.
Rubric for 5-6ab- deadline 5/3
You will get class time (4/30 & 5/2) to make additional revisions to your wikispace page.