conclusion for coke and mentos experiment

You can also place the bottle of unopened soda in a bucket of warm water. Spurting Science: Erupting Diet Coke with Mentos. 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. Use your data from the previous test to determine the standard number of Mentos candies to use for this test. Everyone wants to know how many Mentos make the highest shooting geyser. Warm soda tends to fizz much more than cold soda because of the solubility of gases in liquids. Make sure the candies are in line with the mouth of the bottle. The Wint-o-Green Lifesavers are rougher than the Mentos by a factor of 5, but the mass lost during these reactions is comparable. Just mix the two liquids and get more than 300 feet of Instant Worms. If the reaction occurs over a longer time, more mass can be lost with a smaller explosion. All of our results seem to contradict the aforementioned Mythbusters experiment. The average amount of mass lost for the various combinations of soda and samples is given in Table I. Decreased bubble coalescence leads to smaller bubble sizes and greater foaming ability in the water. Drinks sweetened with aspartame, such as diet Coke or the diet tonic water, are more explosive than drinks sweetened with sugar (corn syrup), which is likely due to a reduction in the work required for bubble formation when aspartame is added. ), A tube the width of the Mentos. The lack of change in the pH supports the conclusion that the Mint MentosDiet Coke reaction is not an acid-base reaction. 1 So the relatively small amount of caffeine in a 2 l bottle of Coke doesnt significantly affect the reaction. So when a bottle of soda is opened, the partial pressure drops, and the molar concentration of the gas must also drop, which is why sodas go flat over time after they are opened. Explore the science of building polymers by cross-linking long chains of molecules. Our AFM measurements show that the rms roughness of the Fruit and Mint Mentos surfaces are comparable (see Table V). Well even provide all the seeds and dirt you need for your exploration into the world of plants. The scale bar for (a) is 100m and for (b) is 20m. WebFound the trial with soda and Mentos at Steve Spangler Science, with tutorial on how at make a huge explosion. 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. To switch between accounts click on the account below. WebThe Diet Coke and Mentos geyser experiment became an internet sensation in September 2005. Sample contact angle images for (a) deionized water, (b) deionized water with added aspartame, and (c) deionized water with added potassium benzoate. Contact mode AFM image of Mint Mentos. As strange as it might sound, the Mentos Geyser Experiment never actually started out using Mentos chewy mints. Record your observations in a logbook. Try placing the soda bottle next to the wall of a brick building, after getting permission from the buildings owner, of course. https://easyscienceforkids.com/diet-coke-and-mentos-video-for-kids/. 2.) He will be performing the crushed vs whole candy in a diet coke. The AFM rms roughness measurements are given in Table V. The SEM images of some of the samples are shown in Figs. The answer is yes. Invert the test tube, holding the cover in place. 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. Search for other works by this author on: Mentos and the scientific method: A sweet combination. [7][8] Experiments carried out at altitudes ranging from below sea level in Death Valley to the summit of Pikes Peak have demonstrated that the reaction works better at higher elevations. 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. The measured contact angles and minimum works for bubble formation are given in Table IV. 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. Mentos and Coke Experiment How to Do It! 8:30 am 5:00 pm (MST), Steve Spangler Science But when the gum arabic was injected into the middle of the bottle, no mass was lost. We launched the Mentos Geyser Tube toy at the New York Toy Fair in February 2007. (2019, December 18). For the reaction between Diet Coke and the molecular sieve beads, the lower limit on the duration of this reaction was 12s, a much longer time than all of the other reactions. Does the amount of Mentos affect the height of the explosion? The uncertainty of the fall times was roughly 10%. A large fountain of coke then comes rushing out, oftentimes multiple metres in the air, causing a sticky mess all over the place. Do they make motorcycle helmets for kids? Each mint has thousands of tiny pits all over its surface. Metastable Liquids: Concepts and Principles. This is because the warm air would have a greater volume and would exert more pressure, which would force the soda to a higher height. eleanorrigby-movie.com 2023 You could use abeakeror agraduated cylinderto measure the remaining soda in milliliters. Hypothesis: If the amount of soda in the bottle decreases, then the height of the plume and velocity of the liquid will also decrease because there will less liquid with which the Mentos can react. We put 4 mentos pieces into the bottle of diet coke. What is a good hypothesis for Mentos and Diet Coke? Many soda geyser-ologists believe that seven Mentos candies produce the highest shooting geyser. As they say, the simplest design usually turns out to be the best and most elegant solution to the problem. Fortunately, the maker of Mentos (Perfetti Van Melle) also liked our Geyser Tube design. What is the conclusion of Mentos and Coke experiment? WebSince which invention of cola, the gegner between Pepsi and Coca-Cola (i.e., Coke) has had in existence. Unscrew soda and put safety goggles on. This was the original inspiration behind the Geyser Tube. . Now, its time to run away. Let us know what you observed in your science experiment! 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. The Mythbusters also correctly identified the roughness of the samples as one of the main causes of the reaction. Diet Coke 280 8.6 Conclusion: The more mentos you put in a bottle of pop does not necessarily mean a larger explosion. So, if you want some quick and easy fun, get some paper towels becausewere about to make a sweet mess. The question was asked on a special College Week episode of Who Wants to Be a Millionaire. WebWhen Mentos candies are dropped into a bottle of Diet Coke, a foamy fountain jets out of the beverage container. Conclusion: The more mentos you put in a bottle of pop does not necessarily mean a larger explosion. Be ready. On a 100m2 scale, the Wint-o-Green Lifesavers have a rms roughness that is more than a factor of 10 larger than the rms roughness of the rock salt. There are two safe ways to warm the other bottle of soda. I also posted the video on a new online video-sharing site called YouTube (YouTube was only seven months old at that time). Its time to put your favorite soda to the test in this fun experiment. Mentos Geyser Experiment Mentos & Coke Experiment. Line up a row of 10 soda bottles against a brick wall. Webfeaturing the famous Diet Coke and Mentos experiment and knew its basic Further research yielded the following background information. We enable strictly necessary cookies to give you the best possible experience on Education.com. 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. My cohost for the KUSA-TV science segment was the lovely Kim Christiansen. 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. WebWhen Mentos candies are dropped into a bottle of Diet Coke, a foamy fountain jets out of the beverage container. There are two major reasons for this discrepancy. To ensure accurate distance measurements and to extract other useful information, a video was made of the reactions, and marker flags were placed every half foot on the level ground, up to a distance of 25ft away from the bottle stand. It is difficult to find beverages containing aspartame that do not contain a preservative such as potassium benzoate. Place the soda bottle outside in and area that can get dirty. This easy at-home experiment is a great way to "see" science. The intensity of the reaction was determined by measuring the mass of the bottle using a double pan balance before and after the reaction to determine the mass lost in the reaction and by measuring the horizontal distance traveled by the sodas spray. Easy Science for Kids. View the Mentos Geyser Experiment here! What female country singers were on American Idol? It should not introduce any new information, but rather summarize the key points made in the discussion section. (As discussed, part of the reason that the Wint-o-Green reaction took more time is due to the increased fall times.) Great integration of science and literature. Thanks also to Guichuan Hou and Phil Russell for their help in acquiring the SEM images, and to Donovan Leonard for his help in acquiring some of the AFM images. The potassium benzoate and the aspartame are active ingredients in the Mint MentosDiet Coke reaction, but the aspartame likely contributes more to the reaction. These bubbles rapidly expand and are Use this worksheet to help you record your observations after doing this experiment. The basic science of the Coke and Mentos reaction is fairly straightforward. If you want a more specific measurement, use chalk to mark off 1-foot increments before you drop the Mentos into the bottle of soda. References: The references section lists all the sources that were cited in the SIP, including articles, books, and How does the flavor of Mentos affect the explosion? Notice how bubbles immediately form on the surface of the object. It is an excellent way for children to see gas in action and is a great activity to teach Within seconds of dropping the candies into the soda, a huge geyser would erupt from the bottle. Keep everything else the same, even the brand of soda. Put the index card on top of the tube loader and turn the tube upside down. The scale bars in each image represent the lengths (a) 200m, (b) 100m, (c) 20m, and (d) 20m. What is the aim of the Coke and Mentos experiment? 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. Its what happens when you put nothing in the soda. What is the conclusion of Coke and Mentos? In addition to the six outlined experiments, weve included suggestions for further fun, giving your future chemist more opportunities to learn and grow. 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. These calculations are approximate, but are consistent with our results reported in Tables I and II. 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. Subtract the remaining amount of liquid from the original volume of the bottle to calculate the volume of the geyser. Be sure that the soda bottles are all the same brand and type. 4). Or, attach plastic piping or tubing to extend the openings neck. This hands-on experiment is easy to do and simply involves dropping Mentos into a bottle of diet soda and running away. They also hypothesized that the rough surface of the Mentos can help break the strong polar attraction that water molecules have for each other by providing growth sites for the carbon dioxide, agreeing with scientists such as Lee Marek and Steve Spangler.2 Although they identified the prime ingredients, they did not sufficiently explain why those ingredients affect the explosion, nor did they provide direct proof of the roughness of the Mentosa tall order for an hour-long television program. Open the soda and place the index card over the bottle opening. Aspiring Botanists, and even young gardeners, will get excited about science with this hands-on kit. We used a FEI Quanta 200 electron scanning microscope. This made the diameter of the candy too large to fit into the mouth of the soda bottle. It should not introduce any new information, but rather summarize the key points made in the discussion section. students used this simple device to monitor the kinetics of foam production in the Diet Coke and Mentos experiment and to draw conclusions about the system. Drop two Mentos into the second bottle and continue increasing the number until youve completed the experiment with all 10 bottles. The Diet Conclusion. 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. Mixing Coke and Mentos looks like a chemical change, but since the gas released is carbon dioxide AND it was present before the foaming happened, it is actually a physical change. Today Room 1 and 5 did a science experiment together. Contact mode AFM image of Wint-o-Green Lifesaver. Why Do Diet And Coke Zero Have A Better Reaction With Mentos? 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. An impressive acid-base reaction can be generated by adding baking soda to Diet Coke. American Crystallographic Association, Inc. AVS: Science and Technology of Materials, Interfaces and Processing, www.stevespanglerscience.com/experiment/00000109, Paragliders' launch trajectory is universal, On the bifurcation behavior of a folded notebook page, Rosalind Franklin's X-ray photo of DNA as an undergraduate optical diffraction experiment, Introducing quantum mechanics through its historical roots: The hydrogen Rydberg atom viewed through the lens of the old quantum theory, The discovery of a supermassive black hole at the center of the Milky Way galaxy, Sensory evaluation and electronic tongue analysis for sweetener recognition in coke drinks. I must admit, however, that even with the Baby Soda Bottle method, the results were not very consistent. The dependent variable is the the Diet Coke with the mentos because it depends on the mentos to have a chemical response. Does the flavor of Mentos affect the explosion? Assuming that youre using the paper tube method, youll want to load the seven Mentos into the tube, cover the bottom of the tube with your finger and position the tube directly over the mouth of the bottle. 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. This experiment investigates if small changes in your diet can alter your basal body temperature. Although mentos look smooth, they are in fact covered with layers upon layers of bumps and rough edges, making them filled with nucleation sites. [1], Lee Marek and "Marek's Kid Scientists" performed the Diet Coke and Mentos experiment on the Late Show with David Letterman in 1999. There is not always a direct correlation between the mass lost and the distance traveled for the reactions. No matter which brand of soda you tested, the warm bottle probably produced the highest shooting geyser. 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. Set up 16oz coke bottle and attach geyser tube and launch. Some helpful comments were made by the anonymous referees. This will happen because the dissolved CO2 will provide the most nucleation sites to come out of the solution. This makes the cleanup process after the experiment easier, and less gross, as nobody would want to be all covered in sugary goop, especially on a hot summer day! Grobe, F., & Voltz, S. The Science of Coke and Mentos. Why do different sodas react differently to Mentos? Measure the height of the geyser by counting the number of bricks that are wet once the geyser stops. State briefly what you tried, what were your results, and what you might do differently next time. For example, it has been suggested that the higher viscosity of regular sodas as compared to diet sodas could inhibit the formation of the fountain in regular sodas, leading to shorter fountains. The Diet Coke and Mentos reaction is a popular experiment or demonstration in part because it inspires students to wonder, and inquiry-driven labs and active-learning demonstrations on this reaction have been implemented.3 I recently led a large group of undergraduate physics students in a cooperative research project to answer some of the debate on this reaction. Diet Coke The biggest challenge in the Mentos Geyser Experiment is finding a consistent way to drop the Mentos into the soda every time. The colder the liquid, themoregas can be dissolved in that liquid. Steve Spanglers Geyser Tube toy (optional . 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 uncertainties are approximately 10%. Pepper has the strongest reaction. Compare your notes on the experimentto the control group. Dont forget to look back at the amazing eruption of soda. Under these conditions, carbon dioxide begins to degas from the solution, forming gas bubbles. These ready-made bubbles (which are nucleation sites) exist in things such as tiny fibers or non-wettable crevices on the sides of the bottle. Coke possesses been which preferred mark through all other coke, spite one preference for Pepsi in blind taste tests. We found that the max amount of mentos with the When they are dropped into the soda, these sharp edges break the bonds between the dissolved gas and water, allowing for the gas to turn into bubbles and escape (Science Buddies, 2012). The Diet Coke and Mentos reaction is a popular experiment or demonstration in part because it inspires students to wonder, and inquiry-driven labs and active-learning What is the dependent variable in Coke and Mentos experiment? 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. Hall, Jonathan Hearing, Leander Hutton, Kelly Izlar, Cully Little, James Lugenbell, Michael Mace, Bonnie Myers, Carla Penders, Zach Russell, Shane Shields, Adrian Steffen, Tony Sturtzel, and Zach Yokley. 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. The carbon dioxide attaches throughout the bead, increasing the amount of time over which the reaction occurs. Overall I expect the Pepsi and Mentos to create a fountain like reaction. In addition to the six outlined experiments, weve included suggestions for further fun, giving your future chemist more opportunities to learn and grow. This was demonstrated in an experiment that tested 15 types of carbonated beverages with Mentos. The quantitative roughness information detailed in Table V was taken from this image. What is the independent variable in the Mentos experiment? 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. [20] In some cases, dissolved solids that increase the surface tension of water (such as sugars) also increase fountain heights. The demo went from relative obscurity to an internet sensation! 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. Everyone found their own method for quickly dropping the Mentos into the soda. WebFound the trial with soda and Mentos at Steve Spangler Science, with tutorial on how at make a huge explosion. The mint Mentos mixed with diet coke usually explodes the longer and higher while fruit Mentos has a more delayed and less impressive reaction. Alternatively, dispense the soda into a vase or pitcher. Regular Coke does not work with Mentos because the Diet Coke uses Aspartame instead of sugar, which regular Coke uses. The answer is a process called nucleation (Grobe & Voltz, n.d.). What is the hypothesis of Mentos and soda? A study in the US has identified the prime factors that drive the fizzy plumes from Coke bottles: the roughness of the sweet and how fast it plummets to the bottle's base. This science kit seeks to challenge kids to solve problems in creative ways that will prepare them for future science classes and nurture their lifelong imagination. Introduce the concepts of chemical bonding, cross-linking of molecules. Hypothesis: The larger the number of mentos, and the warmer the temperature of the soda, the higher the reaction will be. Each bottle will receive a different number of Mentos. Decide who will do what, so you will be ready when its your turn. Warning - you are about to disable cookies. And there is a way to make it really go boom if you have a few pennies and a bit of time on your hands. What is the conclusion of the Coke and Mentos experiment? 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.). There are two reasons Mentos work so well for this experiment. Contact angle measurements were made by placing small drops of the liquid solutions on a flat polycarbonate surface, photographing the drops, and measuring the contact angles from the photographs (see Fig. 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. Then send your curated collection to your children, or put together your own custom lesson plan. To add insult to injury, she did it two more times. While science teachers have been dropping candies and mints into 2-liter bottles of soda for years in an effort to release all of the dissolved carbon dioxide, the Mentos and Diet Coke reaction became world-famous in 2005. First, we learned that the massive buildup of pressure occurs when carbonation causes bubbles to accumulate on the surface of the Mentos. Why does Diet Coke and Mentos explode more than regular Coke? Open the soda bottle, set it down and write down what you observe about it. This science demonstration was popular among chemistry teachers back in the 1980s. As the Mentos candy sinks in the bottle of soda, the candy causes the production of more and more carbon dioxide bubbles. 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. The independent variable to this experiment is the Mento because it could stand alone and it does not depend on. The sugar reduces the contact angle more than pure water and causes more mass to be lost from the seltzer during the reaction, but more mass is lost by the beverages with potassium benzoate and aspartame. The diet coke erupted like a volcano. ", "Orchestrated Chaos: A Mentos Tribute to Eepybird.com", About.com Chemistry page with instructions, "Watch Scientists Conduct the Mentos and Diet Coke Experiment at 14,000 Feet", "Diet Coke and Mentos: What is really behind this physical reaction? Which is the best 150 Ah inverter battery? This is the experiments variable. WebCONCLUSIONS: ( Do you accept or reject your hypothesis, and why or why not) You and your partner will share your experiment with the class. Originally it was thought that the colossal fountain of soda spraying out of the bottle was caused by the caffeine in Coke. Now remove the index card and let candies fall in and step away from the Mentos and coke volcano. [21][29], Additional explanations for why diet sodas outperform regular sodas in this experiment have been proposed. 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. 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. Coke has a pH of 2.3 and it made intuitive sense that an acid-base reaction could explain the sudden explosion of sugar. The trigger pin at the bottom of the tube prevented the Mentos from falling into the bottle until you pulled the string attached to the pin. The Diet Coke and Mentos reaction is a popular experiment or demonstration in part because it inspires students to wonder, and inquiry-driven labs and active-learning demonstrations on this reaction have been implemented. We use cookies to ensure that we give you the best experience on our website. The results for the trials with varying temperature are given in Table III. The average distance traveled by the sodas spray during the explosion is given in Table II. As mentioned earlier in the article, using either diet coke or regular coke alongside mentos can produce a spewing geyser of carbonation bubbles. The video was titled Extreme Diet Coke & Mentos Experiments. We can, however, qualitatively discuss the sample roughness by examining the SEM images of table salt and sand grains in Figs. Learn all about the secrets that make seeds grow and the conservation power of Water Jelly Crystals. Carbonated sodas contain elevated levels of carbon dioxide under pressure. Longer lasting carbonation bubbles, therefore, increases the height of the bubble geyser that forms a mentos and coke reaction. The Amazing Scientist Chemistry Kit is designed to get your young scientist interested in chemistry. The thing that makes soda bubbly is invisible carbon dioxide, which is pumped into bottles at the factory using lots and lots of pressure. [13] The Diet Coke and Mentos geyser experiment became an internet sensation in September 2005. [31] As for the Mentos, many things work to nucleate carbonated beverages such as other candy, metal and ceramic spheres,[32] and even sand.[33][34].

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