Once youve got your location squared away and your supplies gathered, carefully open the bottle of diet soda. The author would like to thank the Dewel Microscopy Facility for their donation of the time on the SEM. The Mythbusters correctly identified potassium benzoate and aspartame as key ingredients in the Diet CokeMentos reaction. This will count as your control group. In a sealed bottle of soda pop, the gas above the liquid in the bottle has a high partial pressure of carbon dioxide compared to the air we breathe. If youre not using the Geyser Tube, make sure to come up with your own method for dropping the Mentos into the soda exactly the same way each and every time. Retrieved January 31, 2021, from https://www.bravotv.com/top-chef/blogs/diet-coke-takes-longer-for-flight-attendants-to-serve-on-airplanes-bubbles#:~:text=Sugar%20both%20increases%20viscosity%20and,bubbles%20that%20pop%20much%20slower.%22&text=In%20the%20end%2C%20the%20total,out%20by%20a%20few%20seconds. If you continue to use this site we will assume that you are happy with it. Line up a row of 10 soda bottles against a brick wall. What happens when you put Mentos in soda? 2.) All of our results seem to contradict the aforementioned Mythbusters experiment. WebWhen Mentos candies are dropped into a bottle of Diet Coke, a foamy fountain jets out of the beverage container. Pre-existing bubbles provide a way for the reaction to occur without requiring bubbles to form within the liquid itself (homogeneous nucleation). What happens when you drop Mentos in a bottle of coke? Native American Teepees, Longhouses, Pueblos, Nebraska State History US History Facts, Becoming a US Citizen US Government Facts, 12 Michael Jackson Facts For Kids 2023 [Must Read], Mood in Literature (Definition, Examples & Case Studies) 2023, Antithesis Examples, Definition, Usage, and Popular instances. eleanorrigby-movie.com 2023 It has also been shown that a wide variety of beverage additives such as sugars, citric acid, and natural flavors can also enhance fountain heights. So what really causes this phenomenon? Why Do Flight Attendants Hate Serving This Drink to Passengers in Flight? What is the conclusion of Mentos and Coke experiment? Conjure a magical genie inside a root beer bottle, awaken a thirsty ghost, use your amazing brainpower to read minds, and more. This increase moves the system away from the equilibrium condition for that molar concentration of the gas. This increase means that the molar concentration of the gas in the solution must drop for the same value of the partial pressure, which implies that gases become less soluble in liquids as the temperature increases. Each mint has thousands of tiny pits all over its surface. The winning Geyser Tube design was a clear plastic tube with a special fitting that twisted onto any soda bottle. However, scientists are finding that theres more to this spectacular demonstration than meets the eye. What would happen if you had Coke and Mentos? Beware of the 20-foot stream of soda that will erupt when you pull off this experiment. The answer is yes. Instead of Mentos mints candy, however, they used a roll of Wintergreen LifeSavers and a pipe cleaner. Do they still make PHILADELPHIA cheesecake filling. WebCONCLUSIONS: ( Do you accept or reject your hypothesis, and why or why not) You and your partner will share your experiment with the class. Many consider Diet Coke to be the optimal option, and it's been studied and confirmed as having the strongest effect. Drop one Mentos candy into the first bottle and record the height by counting the wet bricks or by using your own scale. [20][12][14][17] It has been claimed that gelatin and gum arabic in the Mentos candy enhance the fountain,[12][14][26] but experiments have shown that these candy additives do not affect the fountain. 1 So the relatively small amount of caffeine in a 2 l bottle of Coke doesnt significantly affect the reaction. Is the coke and Mentos reaction really a chemical reaction? Spurting Science: Erupting Diet Coke with Mentos. So, if you want some quick and easy fun, get some paper towels becausewere about to make a sweet mess. We report on an experimental study of the Diet Coke and Mentos reaction, and consider many aspects of the reaction, including the ingredients in the candy and soda, the roughness of the candy, the temperature of the soda, and the duration of the reaction. According to our experiment, however, the SEM images show that the shiny, brightly colored coating on the Fruit Mentos is not uniform and rough patches are exposed (see Fig. What evidence did the team find that the reaction between the Mentos and soda was a physical change? In conclusion the hypothesis that the diet coke will have the greatest explosion because of the high level of CO2 gas contained in it was correct. Based on these SEM images and our inability to image the samples in the AFM due to the limits on our z range, we assume that these samples have a roughness greater than those reported in Table V. Although these samples are rough, the fall times through the bottle, the duration of the reaction, and the lack of a surfactant contributed to a less impressive eruption for these samples. Diet Coke Cover the opening of the test tube with an index card or similar slim, small paper. The question in the hypothesis was answered too, with the answer being no. Conclusion: The more mentos you put in a bottle of pop does not necessarily mean a larger explosion. What is it with this experiment with soda and Mentos that causes this explosion to shoot so far into the air? View the Mentos Geyser Experiment here! Most importantly, the author would like to thank the students of PHY2210 for their hard work and great ideas, including Will Beuttell, Jason Burch, Blake Clark, Robert Duke, Jama Greene, A.J. As the liquid is heated, the gas within that liquid is also heated, causing the gas molecules to move faster and faster. Fortunately, the maker of Mentos (Perfetti Van Melle) also liked our Geyser Tube design. The only variable youll change in this test is the brand of soda; everything else will remain the same. Coke and Mentos Experiment We have shown here via contact angle measurements that these ingredients reduce the work required for bubble formation, allowing carbon dioxide to rapidly escape from the soda. Follow our step-by-step instructions in our Mentos Geyser Experiment to find out. Experiment with your sense of taste and your sense of smell with this simple experiment! Does the amount of Mentos affect the height of the explosion? Hypothesis: The larger the number of mentos, and the warmer the temperature of the soda, the higher the reaction will be. The average amount of mass lost for the various combinations of soda and samples is given in Table I. However, as more experiments were done, some using Diet Coke which has zero caffeine, this theory was ruled out. 4). Conclusion: The Diet Coke reacted to the Mentos, which means the hypothesis was correct. Quantitative Observation Mentos and Diet Coke Experiment. Mentos WebPut 5 room temp Mint Mentos in a geyser tube. In an experiment, you have two groups: an experimental group, and a control group. Enough mass was deposited by the Hawaiian hot spot to form the islands, but the eruptions were comparatively gentle.) Mentos and Coke Experiment How to Do It! If the reaction occurs over a longer time, more mass can be lost with a smaller explosion. Diet Coke and Mentos: Testing New Variables Based on the Data, the hypothesis of my experiment (If the Diet Coke is heated, then it will have the highest geyser, because the atoms will be moving more rapidly and act as a catalyst) was proven to be correct. The seltzer and tonic water trials had the same expiration date and were manufactured by the same company. To add insult to injury, she did it two more times. [2][10][23][24] When dissolved gas diffuses into bubbles that already exist in a liquid, it is called Type IV bubble nucleation. It truly is the perfect chemistry kit for kids who want to explore. ERIC - EJ1240905 - Kinetic Modeling of and Effect of Candy The Wint-o-Green Lifesavers are rougher than the Mentos by a factor of 5, but the mass lost during these reactions is comparable. What type of chemical reaction is Coke and Mentos? As the mentos candy sinks in the bottle, the candy causes the production of more and more carbon dioxide bubbles, and the rising bubbles react with carbon dioxide. The goal is to drop all seven Mentos into the bottle of soda at the same time, which is trickier than you might think. To switch between accounts click on the account below. Given the ingredients listed on Diet Coke, there is more aspartame than potassium benzoate in Diet Coke per unit volume. WebFun Science Experiments // Mentos and Coke / Soda ExperimentIncludes BOTH US size and Australian A4 sized files/spelling!This fun experiment explores the physical reaction between mentos and diet coke / diet soda creating an impressive geyser of carbon dioxide. The addition of the Mentos leads to the rapid nucleation of carbon dioxide gas bubbles, degassing the solution:[2][19][20][21][22], The conversion of dissolved carbon dioxide to gaseous carbon dioxide forms rapidly expanding gas bubbles in the soda, which pushes the beverage contents out of the container. A two-liter bottle of diet soda (diet soda makes for a much better reaction, but you can use regular soda if you like. CYSF Its also important that all of the test bottles are stored in the same place so that the liquid in each bottle is the same temperature. Its time to return to your launching site. A variety of containers with varying sized opening, A narrow test tube wide enough to fit the candy [Klutz and others make a delivery contraption that is easier.]. The hands-on experiment involves dropping several Mentos Chewy Mints into a bottle of Diet Coke, which can cause a stream of the diet cola to shoot many feet Compare the contact angle results in Table V for pure water (=85), sugar water (=80), and aspartame dissolved in water (=77). The bubbles then act as growth sites, where the carbon dioxide still dissolved in the solution moves into the rising bubbles, causing even more liberation of carbon dioxide from the bottle. This study began as a project for physics majors enrolled in a sophomore level physics lab course. It proved challenging to get away from that bottle before it exploded. ", "MythBusters: Diet Coke and Mentos MiniMyth", "Toying with the Diet Coke and Mentos experiment", "How Many Bubbles Are in the Foam Produced during the Candy-Cola Soda Geyser? But making soda explode is fun. Oddly enough, this container was actually a pre-form or 2-liter soda bottle before it was blown up into a big bottle. The most striking example is the molecular sieve beads, which lost a significant amount of mass but only traveled 2.5ft. Prior to heating, the bottle was opened to release some of the internal pressure, and then closed again. The seltzer water and tonic water trials were 1l bottles with 16g of Mint Mentos added; all other trials were 30g of solid material added to a 2l bottle of liquid. Make sure the candies are in line with the mouth of the bottle. The simplest method is to let the unopened bottle sit in the sun for several hours. Figure 1(b) shows rough patches and nooks and crannies in the salt, which are also excellent growth sites. However, you wont get the same effect from eating Mentos after drinking Coke. Also thanks to my undergraduate summer research assistants for their hard work, including A.J. As the mentos candy sinks in the bottle, the candy Later on in the experiment, youll be invited to compare the geyser power of diet versus regular soda, but for now well start with a 2-liter bottle of diet soda. A Diet Coke and Mentos eruption (also known as a soda geyser) is a reaction between the carbonated beverage Diet Coke and Mentos mints that causes the beverage to be expelled from its container. Position the bottle on the ground so that it will not tip over. What did you observe when you put Mentos candy into the soda bottle? With 5 or 6 mentos the explosion went only 330 and 310 cm high. The reaction happens fast, so dont have your face over the bottle. Experimental measurements suggest that as many as 14 million bubbles are produced per liter of soda in this experiment.[19]. . View the Mentos Geyser Experiment here! Observe the eruptionheight, trajectory, duration, etc. Because Type IV nucleation sites (such as found on Mentos) allow the reaction to proceed with substantially lower activation energy, Mentos candies can appropriately be considered a catalyst of the process. For each of the samples a (10m)2 image was acquired, and the root-mean-square (rms) roughness in the image was reported. This in turns means that the carbon dioxide gas is more rapidly released. What is the hypothesis for the Diet Coke and Mentos experiment? The lower magnification images show large surface areas and small volumes, especially when compared to samples such as a Mentos, which is 12cm in diameter. Keep everything else the same, even the brand of soda. Longer distances traveled by the bubbles resulting in a more explosive reaction also partially explains the differences in explosive power for whole Mentos in contrast to crushed Mentos; the smaller particulates of the crushed Mentos fall through the liquid more slowly. Drop the Mentos into the diet soda. If the partial pressure of the gas above the liquid is higher, then more gas can be dissolved in the liquid. There is not always a direct correlation between the mass lost and the distance traveled for the reactions. Coke And Mentos Experiment Free Essay Example - PaperAp.com What Will I Need For The Mentos And Coke Volcano? Regular soda becomes a sticky mess because it contains sugar, while diet soda uses artificial sweeteners instead of sugar, so its not as sticky. The next few months were spent building trigger devices that ranged from plastic tubes with sliding doors and magnets that held metal stoppers in place to an elaborate battery-operated switch that was triggered by a motion detector. The scale bar for (a) is 100m and for (b) is 20m. [20][30] It has also been suggested that the more stable foams observed in diet sodas as compared to regular sodas could contribute to the taller geysers observed in diet sodas. Its also a lot less work than your classic paper mache volcano. 8:30 am 5:00 pm (MST), Steve Spangler Science If we assume that LV is similar for Diet Coke and Caffeine Free Diet Coke, then the work required for bubble formation for Diet Coke is 90% of the work required for bubble formation for Caffeine Free Diet Coke. WebMentos and Soda Experiment | Eepy Bird The Extreme Diet Coke & Mentos Experiments About The Extreme Diet Coke & Mentos Experiments This is the video that started it all: a backyard experiment became a cultural phenomenon. We used a FEI Quanta 200 electron scanning microscope. The seltzer and tonic water were not Coca-Cola products, and it was not possible to find seltzer and tonic water with the same expiration date as the Coke products. Place the soda bottle outside in and area that can get dirty. Coke has a pH of 2.3 and it made intuitive sense that an acid-base reaction could explain the sudden explosion of sugar. [10] When the pressure is released from a soda bottle upon opening it, dissolved carbon dioxide can escape into any tiny bubble located within the beverage. We also showed that samples which encounter less viscous drag and hence fall more quickly through the soda will cause a more explosive reaction. Why does the reaction happen? Carbonated sodas contain elevated levels of carbon dioxide under pressure. ), Vampire Slime Light Sensitive Color-Changing, STEM Science Kit: Amazing Scientist Chemistry Kit, Big Bucket of Science Test Tube Experiments, A roll or box of Mentos chewy mints (stick with the standard mint flavor for now), 2-liter bottle of diet soda (either diet or regular soda will work for this experiment, but diet soda is not sticky when youre cleaning it up, and it will usually create a bigger blast). How Does Diet Affect Your Body Temperature? In the Mythbusters episode1 a Mint Mentos and a brightly colored Mentos were dropped into Diet Coke, and although the Mint Mentos caused the expected eruption, the brightly colored Mentos did almost nothing. If the growth of carbon dioxide bubbles on the sample takes place at the bottom of the bottle, then the bubbles formed will detach from the sample and rise up the bottle. Contact angles of various solutions on polycarbonate and the ratio of the minimum work required to form a critical bubble in the sample over the minimum work required to form a critical bubble in deionized H2O. ERIC - EJ1240905 - Kinetic Modeling of and Effect of Candy Place the index card and candies over the mouth of the bottle. The pH of the Diet Coke after the baking soda reaction was 6.1, indicating that much of the acid present in the Diet Coke was neutralized by the reaction. This was demonstrated in an experiment that tested 15 types of carbonated beverages with Mentos. Please follow us on Medium and on Instagram, thanks! To compare two systems, we calculate a ratio of the works required for bubble formation: We used this technique to compare the work required for formation of a bubble in deionized water to other liquids, as summarized in Table IV. The other bottles were heated in a water bath on a hot plate for approximately 1020min. Sample morphology was determined by imaging the samples in an environmental scanning electron microscope (SEM).4 The uncoated samples were imaged in low vacuum mode. The scale bars represent the following lengths: (a) 2.0mm; (b) 100m, (c) 50m, and (d) 20m. Mentos 4, and some of the AFM images are shown in Figs. Write down what happened when you dropped the Mentos in the coke. Conclusion - Diet Coke and Mentos 100 - Google Sites Also, for the same amount of mass lost, the eruption will be more dramatic when the reaction takes place over a shorter time. Making science accessible and fun for youth. The uncertainty of the fall times was roughly 10%. Because Mentos mints didnt have holes in the middle like LifeSavers, getting them into the bottle was a little tricky. From our results in Tables I and II we see that the rock salt performance far exceeds the table salt performance, even though the surface area to volume ratio (and hence the number of bubble growth sites per gram) is larger for the table salt. Why do Mentos turn ordinary bottles of diet soda into geysers of fun? To the naked eye, Fruit Mentos are shinier than Mint Mentos, and therefore should be smoother. [1][14][17] Tonya Coffey, a physicist at Appalachian State University, suggested that aspartame in diet drinks lowers the surface tension in the water and causes a bigger reaction, but that caffeine does not accelerate the process. The temperature was 52 F. In this experiment, mentos caused a eruption in a 2-liter bottle of Diet Mountain Dew erupted, thus we concluded that diet Mountain Dew Be sure that the soda bottles are all the same brand and type. The uncertainty is approximately 10%. To make any of these tests meaningful, youll need to find a way to measure the height of the eruption. Make comparisons, create a chart with your data and draw some conclusions. Many soda geyser-ologists believe that seven Mentos candies produce the highest shooting geyser. Dont miss our other super-fun and hands-on experiments in our huge online experiment library! The independent variable was the altering of each Mento. The kit comes with the essential materials youll need to conduct 6 experiments, take-it-further activities and challenges for 1 4 children per kit. Figure 1(a) qualitatively demonstrates that the small cubic table salt grains have a high surface area to volume ratio, thus providing many growth sites for the carbon dioxide in the Diet Coke. All the carbon dioxide in the soda all that fizz is squeezed into the liquid and looking for a way out. Stack the Mentos candies (approx. WebWhen Mentos candies are dropped into a bottle of Diet Coke, a foamy fountain jets out of the beverage container. The bubbles of gas get larger and as they are lighter than the cola liquid, they quickly shoot to the top of the bottle. As the Mentos candy sinks in the bottle, the candy causes the production of more and more carbon dioxide bubbles, and the rising bubbles react with carbon dioxide that is still dissolved in the soda to cause more carbon dioxide to be freed and create even more bubbles, resulting in the eruption. To get the best results in a science experiment, you will need to standardize the test conditions as much as possible. Great integration of science and literature. Muir, H. (2008, June 12). What is the dependent variable of Coke and Mentos? Observe and explain the Mentos and Diet Coke experiment. In this experiment, you will evaluate whether or not a diet that is supplemented with "brain-enhancing" foods can help improve memory. The colorful nature of this chemistry experiment kit introduces your child to basic concepts of volume, measurement and chemical reactions in a safe, no-mess way. Subtract the remaining amount of liquid from the original volume of the bottle to calculate the volume of the geyser. Soda geyser - Wikipedia There are two safe ways to warm the other bottle of soda. The amount 54020g of mass was lost from the diet tonic water, 43020g of mass was lost from the tonic water, and 945g of mass from the seltzer water. [15] Amazing Toys, Spangler's toy company, released the Geyser Tube toys in February 2007. Note be sure to only try this experiment with a responsible adult! Under these conditions, carbon dioxide begins to degas from the solution, forming gas bubbles. Their surfactant properties then lower the surface tension of the Coke, which breaks apart the water molecules and, in doing so, allows carbon dioxide bubbles to form more readily. Science teachers found that Mentos candies had the same effect when dropped into a bottle of any carbonated soft drink. How does the temperature of the soda affect the height of the soda stream when Mentos are added to soda? As the mentos candy sinks in the bottle, the candy causes the production of more and more carbon dioxide bubbles, and the rising bubbles react with carbon dioxide. These bubbles rapidly expand and are Learn all about the science of seeds and have fun getting your hands in the dirt. Bookmark this to easily find it later. Try placing the soda bottle next to the wall of a brick building, after getting permission from the buildings owner, of course. WebDiet coke and mentos explained: We explain the science behind the Diet Coke and Mentos experiment: The mint sweets provide a surface for the gas in the cola to cling on to. http://www.eepybird.com/featured-video/coke-and-mentos-featured-video/science-of-coke-mentos/. It might seem surprising that the Fruit Mentos perform as well or better than the Mint Mentos. Carbon dioxide creates the bubbles in soda. For that reason, I solicited help from our creative team at Steve Spangler Science to come up with a Geyser Tube a better, more consistent way to drop the Mentos candies into the 2-liter bottle. To directly compare the aspartame with the potassium benzoate we dropped 16g of Mint Mentos into a 1l bottle of seltzer water with 7.5g of added potassium benzoate and the same amount to a 1l bottle of seltzer water with 7.5g of added aspartame. Due to the small amount of caffeine in a 2l bottle of Diet Coke, we do not agree that the caffeine in Diet Coke contributes significantly to the reaction. We enable strictly necessary cookies to give you the best possible experience on Education.com. Coca Cola and Mentos Experiment | Kids Coke Experiment | Kids TV Parts of science investigatory project. Science Investigatory The scientific method is an important way scientists make observations and come to conclusions. Afterwards, Grobe and Voltz appeared on many renowned television programs, such as Ellen, HBOs The Comedy Festival to talk about their viral video and they were even invited to other countries like France, Turkey and Belgium. 2023 Cool Kid Facts. (4)P is the partial pressure of the gas above the liquid, K is a parameter, and c is the molar concentration of the gas. Mentos A soda geyser is a reaction between a carbonated beverage, usually Diet Coke, and Mentos mints that causes the beverage to be expelled from its container. As soon as the Mentos hit the soda, bubbles cling to the surfaces of the candies and then quickly rise to the surface of the liquid. While the reaction remains fairly the same regardless of what carbonated beverage you use for this experiment, diet sodas are usually more carbonated and fizzy compared to regular sodas. [27][28] Thus, the geyser reaction will still work even using sugared drinks, but diet is commonly used both for the sake of a larger geyser as well as to avoid having to clean up the stickier residue left by a sugared soda. Write down what you think will happen when placing the Mentos in the soda. After this, two interested scientists from the entertainment company EepyBird, Fritz Grobe and Stephen Voltz decided to post a Youtube video demonstrating this experiment and it went viral, gaining 120 million views. We put 4 mentos pieces into the bottle of diet coke. WebWith the Coke and mint mentos experiment, coke and fruit mentos were very similar as the coke and mint mentos took 31 seconds to complete the reaction while coke and fruit mentos took 22 seconds to complete in total. What happens if you combine soda and Mentos? Repeat the same procedure for the bottle of soda at room temperature and then again for the bottle of warm soda. Science teachers found that Mentos candies had the same effect when dropped into a bottle of any carbonated soft drink. These tiny pits act as nucleation sites, which are perfect for carbon dioxide bubbles. Each time, she was covered in more soda until her once-pink dress was now more Coke-colored than pink! 1 and 3. Something else to consider about diet sodas is that they tend to be less sticky when released out in the open. The work required to form a bubble in sugar water and aspartame is 74% and 67%, respectively, of the work required to form a bubble in pure water. Youll need lots of soda and Mentos, as well as a few friends to help record all of the data. Everyone wants to know how many Mentos make the highest shooting geyser. 5 Research Drive, Suite 150Shelton, CT 06484. In colder liquids, the gas molecules move very slowly, causing them to diffuse out of the solution much more slowly, leaving more gas in the solution. WebFound the trial with soda and Mentos at Steve Spangler Science, with tutorial on how at make a huge explosion. Diet Coke and Mentos: What is really behind this physical reaction Although this conclusion seems to refute the claims made by the Mythbusters, remember that in their experiments, Jamie added enough caffeine to kill you to the seltzer water.1 So the relatively small amount of caffeine in a 2l bottle of Coke doesnt significantly affect the reaction. Although mentos look smooth, they are in fact covered with layers upon layers of bumps and rough edges, making them filled with nucleation sites. If you want to examine the volume of the geyser, note the volume of a full bottle of soda before you drop the Mentos into it. WebSince which invention of cola, the gegner between Pepsi and Coca-Cola (i.e., Coke) has had in existence. Mentos Lab Report - Google Docs Or, attach plastic piping or tubing to extend the openings neck.