WebFound the trial with soda and Mentos at Steve Spangler Science, with tutorial on how at make a huge explosion. Observe and explain the Mentos and Diet Coke experiment. Why does Diet Coke and Mentos explode more than regular Coke? Youll need a thermometer to record the temperature of the soda just before you launch it so that your data are accurate. We enable strictly necessary cookies to give you the best possible experience on Education.com. The pH of the diet Coke prior to the reaction was 3.0, and the pH of the diet Coke after the mint Mentos reaction was also 3.0. 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 activation energy for the release of carbon dioxide from Diet Coke by the addition of Mentos is 25 kJ mol1. [17] This record was afterward beaten in November 2014 by another event organized by Perfetti Van Melle and Chupa Chups in Len, Guanajuato, Mexico, where 4,334 Mentos and soda fountains were set off simultaneously. The simplest method is to let the unopened bottle sit in the sun for several hours. What properties do coke and mentos have that enable them to react so vigorously with each other? Try dropping an object, like a raisin or a piece of uncooked pasta, into a glass of soda. So, when a Mento is dropped into some Coke, the acidity of the soda mixture quickly dissolves its shell, releasing the chemicals. As mentioned earlier in the article, using either diet coke or regular coke alongside mentos can produce a spewing geyser of carbonation bubbles. Why does the reaction happen? 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. ), A tube the width of the Mentos. 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 lack of sugar makes the soda mixture less viscous, given the presence of sweeteners, like aspartame, lowering the surface tension even more than usual. 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. Then, make comparisons, create a chart with your data and draw your conclusions. 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. The Amazing Scientist Chemistry Kit is designed to get your young scientist interested in chemistry. 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.]. This bread mold experiment will help your child learn about mold, and he'll develop important hypothesis-making and experiment-designing skills. Place the second bottle in a place where it will reach room temperature overnight. Start by opening the cold bottle and dipping the thermometer into the soda. Conclusion: The conclusion is a brief summary of the main findings of the study and their implications. [10] As another example, dropping grains of salt or sand into the solution provides Type IV nucleation sites, lowers the activation energy compared to that of homogeneous nucleation, and increases the rate of carbon dioxide degassing. Bookmark this to easily find it later. The Mythbusters identified the active ingredients in the Diet Coke that contribute to the Mint MentosDiet Coke reaction: caffeine, aspartame, and potassium benzoate, a preservative.1 As shown by the agreement within the 10% experimental error of the mass lost and distance traveled by the sodas spray for Mint Mentos in Diet Coke compared to Mint Mentos in Caffeine Free Diet Coke (see Tables I and II), the presence or absence of caffeine in the beverages contributes little to the reaction. The AFM rms roughness measurements are given in Table V. The SEM images of some of the samples are shown in Figs. We examined the reaction between Diet Coke and samples of Mint Mentos, Fruit Mentos, a mixture of Dawn Dishwashing detergent and water, playground sand, table salt, rock salt, Wint-o-Green Lifesavers, a mixture of baking soda and water, liquid gum arabic, and molecular sieve beads (typically found in sorption pumps). WebThis product walks you through the scientific method using two different experiments: -- How different types of soda react when Mentos is added to them- How Coke reacts to Mentos vs. how it reacts to baking sodaStudents will make an observation, ask a question, create a hypothesis, conduct an experiment, record results, and write a conclusion. Follow our step-by-step instructions in our Mentos Geyser Experiment to find out. What factors made dabbawala system successful? [20] It has also been demonstrated that addition of certain concentrations of alcohol (which lowers surface tension) to carbonated beverages decreases fountain heights. The pits on the candy coating act as conduits for carbon dioxide bubbles that form immediately when the candy hits the soda, increasing its fizziness. Rough candy Measurements showed that the surface tension in water containing the sweetener aspartame is lower than in sugary water, explaining why Diet Coke creates more dramatic fountains than sugary Coke. This hypothesis was also proven false as the pH of the substance did not change after the reaction (Muir, 2008). The bubbles of gas get larger and as they are lighter than the cola liquid, they quickly shoot to the top of the bottle. What type of chemical reaction is Coke and Mentos? Carbon dioxide is the chemical compound that consists of two oxygen atoms bonded to a carbon atom. Drop one Mentos candy into the first bottle and record the height by counting the wet bricks or by using your own scale. [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. Many consider Diet Coke to be the optimal option, and it's been studied and confirmed as having the strongest effect. Easy Science for Kids. Youll need lots of soda and Mentos, as well as a few friends to help record all of the data. Use your data from the previous test to determine the standard number of Mentos candies to use for this test. What causes the explosion when Mentos are dropped into the Diet Coke? Its what happens when you put nothing in the soda. I also posted the video on a new online video-sharing site called YouTube (YouTube was only seven months old at that time). We even played with ways to use the Geyser Tube to trigger multiple soda geysers in a method similar to a Rube Goldberg machine. Thus, adding Mentos candies to a carbonated beverage introduces millions of nucleation sites into the drink, which allows for degassing that is rapid enough to support a jet of foam out of a bottle. I must admit, however, that even with the Baby Soda Bottle method, the results were not very consistent. Note be sure to only try this experiment with a responsible adult! [25] These results suggest that additives serve to enhance geyser heights not by decreasing surface tension, but rather by decreasing bubble coalescence. Then, observe, record and report the results. Retrieved from https://easyscienceforkids.com/diet-coke-and-mentos-video-for-kids/. My cohost for the KUSA-TV science segment was the lovely Kim Christiansen. WebThe Diet Coke and Mentos geyser experiment became an internet sensation in September 2005. However, scientists are finding that theres more to this spectacular demonstration than meets the eye. Can I use clear bottom plates for fluorescence? Its time to return to your launching site. Today Room 1 and 5 did a science experiment together. The coating of the Mentos contains gum arabic, a surfactant that reduces the surface tension of water. Le Chateliers principle states that, If, to a system at equilibrium, a stress be applied, the system will react so as to relieve the stress.6 In our experiment the stress we are applying increases the temperature of the Diet Coke. The popular Diet Coke and Mentos reaction occurs when new Mentos are dropped into a fresh bottle of Diet Coke and results in a jet of Diet Coke spray shooting out of the mouth of the bottle. What effect does temperature have on the height of the geyser? That year, the grist being run through the rumor mill included the sad tale of a misadventuring tot who had gulped soda and ingested Pop Rocks, a carbonated candy known for producing a fizzling sensation in the mouth. WebMentos and Diet Coke Experiment. My son chose this experiment for his 6th grade science fair project. [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. Is the coke and Mentos reaction really a chemical reaction? Repeat the same procedure for the bottle of soda at room temperature and then again for the bottle of warm soda. What is the hypothesis for the Diet Coke and Mentos experiment? If the partial pressure of the gas above the liquid is higher, then more gas can be dissolved in the liquid. Do a little bit of research about the ingredients of Mentos and soda. Warm soda tends to fizz much more than cold soda because of the solubility of gases in liquids. The thing that makes soda bubbly is invisible carbon dioxide, which is pumped into bottles at the factory using lots and lots of pressure. 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. 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. Its true that putting Mentos into a bottle of Coke will cause an impressive geyser of soda to erupt from the bottle. Once youve got your location squared away and your supplies gathered, carefully open the bottle of diet soda. What is the conclusion of Mentos and Coke experiment? What evidence did the team find that the reaction between the Mentos and soda was a physical change? Mentos are heavy and can travel the entire volume of the bottle, breaking many bonds and building a lot of pressure that is released in the form of a geyser of soda (Grobe & Voltz, n.d.). The contestant ended up doing really well, going all the way to the $250,000 question; however, he walked away with $125,000. What is the aim of the Coke and Mentos experiment? Did what you hypothesize happen? Why do different sodas react differently to Mentos? [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. Our AFM measurements show that the rms roughness of the Fruit and Mint Mentos surfaces are comparable (see Table V). WebWhen Mentos candies are dropped into a bottle of Diet Coke, a foamy fountain jets out of the beverage container. The parameter K changes with temperature, generally increasing as the temperature increases. Thank you so much. The diet coke erupted like a volcano. However, the larger rock salt pellets fall quickly to the bottom of the 2l bottle, while the much smaller table salt grains fall more slowly due to their smaller weight and size. This all boils down to the presence (or lack thereof) of sugar. And you may not have a friend for a day or two until they forgive you. 5 Research Drive, Suite 150Shelton, CT 06484. Just mix the two liquids and get more than 300 feet of Instant Worms. In addition to the six outlined experiments, weve included suggestions for further fun, giving your future chemist more opportunities to learn and grow. Decide who will do what, so you will be ready when its your turn. This is what happens when you combine 200 liters of Diet Coke and over 500 Mentos mints! However, a change in surface roughness might also occur and affect the results when the Mentos is crushed. Conclusion Hypothesis: In the experiment I expect the Pepsi and Mentos reaction to be at least 30cm in height, however, I expect it to be short lived due to the fact that the sodium level of the beverage is only 10 mg. WebCONCLUSIONS: ( Do you accept or reject your hypothesis, and why or why not) You and your partner will share your experiment with the class. The Fruit Mentos and the Mint Mentos reaction lost roughly the same amount of mass, but the Fruit Mentos reaction took place over a shorter time and therefore the spray traveled much farther than the Mint Mentos reactions. Webfeaturing the famous Diet Coke and Mentos experiment and knew its basic Further research yielded the following background information. Quantitative surface roughness measurements were made with a Digital Instruments contact mode atomic force microscope (AFM) with Nanoscope III control electronics and a J type scanner with a 24m z range. Toll Free: 800-223-9080 What is it with this experiment with soda and Mentos that causes this explosion to shoot so far into the air? During the commercial break, I told Kim what was going to happen and reminded her to pull her hand out of the way of the erupting geyser and to run backward. When we drop the Mentos in the heated Diet Coke, the system moves toward equilibrium by liberating the excess carbon dioxide from the solution via the explosive reaction. (Gruber, 2019). Compare these times to the mass lost and distance traveled results in Tables I and II. Bubble nucleation and growth in carbonated beverages almost always occur by heterogeneous nucleation: diffusion of carbon dioxide into pre-existing bubbles within the beverage. The question was asked on a special College Week episode of Who Wants to Be a Millionaire. Under these conditions, carbon dioxide begins to degas from the solution, forming gas bubbles. The students designed the experiment, did almost all of the data acquisition, and disseminated their results in a poster session at our spring Research and Creative Endeavors Day at Appalachian State University. Position the bottle on the ground so that it will not tip over. We put 4 mentos pieces into the bottle of diet coke. 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. To use the Mentos Geyser for a science fair project, youll to turn this cool science activity into a real science experiment. 2023 Cool Kid Facts. WebFound the trial with soda and Mentos at Steve Spangler Science, with tutorial on how at make a huge explosion. Tobin, Declan. The Mentos Geyser Experiment became one of my featured demonstrations both on television and during my live stage presentations. 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. Sample contact angle images for (a) deionized water, (b) deionized water with added aspartame, and (c) deionized water with added potassium benzoate. We showed the importance of sample roughness by comparing SEM and AFM images of the samples to the explosive power of the reaction. Carbon dioxide creates the bubbles in soda. Science teachers found that Mentos candies had the same effect when dropped into a bottle of any carbonated soft drink. All of our results seem to contradict the aforementioned Mythbusters experiment. Enough mass was deposited by the Hawaiian hot spot to form the islands, but the eruptions were comparatively gentle.) The candies catalyze the release of gas from the beverage, which creates an eruption that pushes most of the liquid up and out of the bottle. http://www.eepybird.com/featured-video/coke-and-mentos-featured-video/science-of-coke-mentos/. Repeat the process, varying the opening that the soda erupts from. How can I download Tekken 7 on Windows 7? Dog Diets: Will a Dog Prefer Homemade Dog Food? St. Helens and Mt. Beware of the 20-foot stream of soda that will erupt when you pull off this experiment. Longer lasting carbonation bubbles, therefore, increases the height of the bubble geyser that forms a mentos and coke reaction.
Extended Warranty Letter To Customer,
Minor Right Of Exorcism,
Sims 4 Maxis Match Cc Folder Sims File Share,
Misrule Heather Walter Spoilers,
Articles C