Mentos The coating of the Mentos contains gum arabic, a surfactant that reduces the surface tension of water. This is what happens when you combine 200 liters of Diet Coke and over 500 Mentos mints! 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. The uncertainties are approximately 10%. Many consider Diet Coke to be the optimal option, and it's been studied and confirmed as having the strongest effect. Youll need lots of soda and Mentos, as well as a few friends to help record all of the data. ), 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). Does Colorado have a defensive driving course? students used this simple device to monitor the kinetics of Making science accessible and fun for youth. Record the temperature. The reaction has been performed numerous times on television and the Internet, but has not been systematically studied. https://www.newscientist.com/article/dn14114-science-of-mentos-diet-coke-explosions-explained/. The reaction happens fast, so dont have your face over the bottle. Now its time to actually run the experiment,but first,we need to make a hypothesis. This made the diameter of the candy too large to fit into the mouth of the soda bottle. When you open the container, the bubbles quickly rise to the top, pushing the liquid out of the way, so liquid sprays everywhere. Spurting Science: Erupting Diet Coke with Mentos. What is the conclusion of the Coke and Mentos experiment? The places where the bubbles form are the nucleation sites. What is a good hypothesis for Mentos and Diet Coke? This was the original inspiration behind the Geyser Tube. What is a good hypothesis for Mentos and Diet Coke? Then, observe, record and report the results. WebFun Science Experiments // Mentos and Coke / Soda ExperimentIncludes BOTH US size and Australian A4 sized files/spelling!This fun experiment explores the physical reaction Youll need a thermometer to record the temperature of the soda just before you launch it so that your data are accurate. 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. Its true that putting Mentos into a bottle of Coke will cause an impressive geyser of soda to erupt from the bottle. The uncertainty of the fall times was roughly 10%. So, when a Mento is dropped into some Coke, the acidity of the soda mixture quickly dissolves its shell, releasing the chemicals. Mentos Pre-existing bubbles provide a way for the reaction to occur without requiring bubbles to form within the liquid itself (homogeneous nucleation). We compared dropping 16g of Mint Mentos into a 1l bottle of seltzer water (carbonated water), a 1l bottle of tonic water (carbonated water, high fructose corn syrup, citric acid, natural and artificial flavors, and quinine), and a 1l bottle of diet tonic water (carbonated water, citric acid, natural and artificial flavors, aspartame, potassium benzoate, and quinine). The Mentos candy gelatin and gum arabic create an energy that breaks the surface tension of the soda. The average distance traveled by the sodas spray during the explosion is given in Table II. Team students up and have them collaborate to figure out chemistry experiments or give your own kids a fun, rainy day activity that will get them excited about learning. What did you observe after you put Mentos candies into the soda bottle? normal, unaltered Mento. We also showed that samples which encounter less viscous drag and hence fall more quickly through the soda will cause a more explosive reaction. For the temperature dependent trials one of the Diet Coke 2l bottles was refrigerated for several hours prior to the experiment. View the Mentos Geyser Experiment here! [15] Amazing Toys, Spangler's toy company, released the Geyser Tube toys in February 2007. The results for the trials with varying temperature are given in Table III. What causes the explosion when Mentos are dropped into the Diet Coke? ", "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? Turn from eerie green to blood red when you hold it up to the light. This bread mold experiment will help your child learn about mold, and he'll develop important hypothesis-making and experiment-designing skills. Steve Spanglers Geyser Tube toy (optional . If you decide to create an account with us in the future, you will need to enable cookies before doing so. The dependent variable was the height of the rise of Coca-Cola. roll of Mentos candies (any flavor) 2-liter bottle of soda (diet soda is less sticky; diet cola seems to produce the best fountain) index card or sheet of paper. When the gum arabic was injected at the bottom of the bottle, 100g of mass was lost. The other bottles were heated in a water bath on a hot plate for approximately 1020min. Also, the coating dissolves very rapidly in water, and so is not effective at preventing the growth of carbon dioxide bubbles. 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. QUESTIONS: 1. St. Helens and Mt. Mentos Place the index card and candies over the mouth of the bottle. Some people fashioned a tube out of paper; others used a piece of plastic tubing to load the Mentos. It comes with six fun experiments, a test tube rack, fizzing tablet and vegetable oil chemicals to play around with. The Mythbusters correctly identified potassium benzoate and aspartame as key ingredients in the Diet CokeMentos reaction. 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. What is the independent variable in the Mentos experiment? This chemistry science kit includes activities for solo and group experiments, making it a fantastic addition to your classroom or for fun at home. Instead of Mentos mints candy, however, they used a roll of Wintergreen LifeSavers and a pipe cleaner. As mentioned earlier in the article, using either diet coke or regular coke alongside mentos can produce a spewing geyser of carbonation bubbles. CYSF The Amazing Scientist Chemistry Kit is designed to get your young scientist interested in chemistry. Carbon dioxide is the chemical compound that consists of two oxygen atoms bonded to a Conclusion - Diet Coke and Mentos 100 - Google Sites June 15, 2008 -- The startling reaction between Diet Coke and Mentos sweets, made famous in thousands of YouTube videos, finally has a scientific explanation. 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. This is the experiments variable. 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. Diet Cola and Mentos The tubes of candies were threaded onto a pipe cleaner and dropped into the soft drink to create a geyser. 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. WebKids TV Yenu and Sanu is home to gaining knowledge & entertain toddlers. You might need to put down something flat, like a small piece of wood, to hold it up. Mentos Geyser Experiment - Mentos & Coke Experiment - The Lab Thats my final answer.. Contact mode AFM image of Wint-o-Green Lifesaver. Do they still make PHILADELPHIA cheesecake filling. http://www.eepybird.com/featured-video/coke-and-mentos-featured-video/science-of-coke-mentos/. This chemistry science kit includes activities for solo and group experiments, making it a fantastic addition to your classroom or for fun at home. You could use abeakeror agraduated cylinderto measure the remaining soda in milliliters. Decreased bubble coalescence leads to smaller bubble sizes and greater foaming ability in the water. It should not introduce any new information, but rather summarize the key points made in the discussion section. What factors made dabbawala system successful? [21][29], Additional explanations for why diet sodas outperform regular sodas in this experiment have been proposed. Enough mass was deposited by the Hawaiian hot spot to form the islands, but the eruptions were comparatively gentle.) 2023 Cool Kid Facts. Many soda geyser-ologists believe that seven Mentos candies produce the highest shooting geyser. Fueled by hundreds of blogs and popular online sharing sites like YouTube, this once obscure reaction quickly became a sensational hands-on learning activity for young scientists. The potassium benzoate and the aspartame are active ingredients in the Mint MentosDiet Coke reaction, but the aspartame likely contributes more to the reaction. Within seconds of dropping the candies into the soda, a huge geyser would erupt from the bottle. Mentos and Diet Coke Experiment | Science project - Education Never use a stove or a microwave to heat a bottle of soda. This is a great topic for a science project. Dropping something into the Diet Coke speeds up this process by both breaking the surface tension of the liquid and also allowing bubbles to form on the surface area of the Mentos. . By the end of the 1990s, however, the manufacturer of Wintergreen LifeSavers increased the size of the mints (no one was ever certain why). Originally it was thought that the colossal fountain of soda spraying out of the bottle was caused by the caffeine in Coke. Note that the contact angle for the aspartame and potassium benzoate solutions is less than the contact angle for pure water, indicating a decrease in the surface tension. It truly is the perfect chemistry kit for kids who want to explore. Since diet sodas lack the sugar that regular ones do, it has lower viscosity and surface tension. . Fast-moving mentos create larger explosions while slow, powdered mentos create tiny ones (Muir, 2008). The activation energy for the release of carbon dioxide from Diet Coke by the addition of Mentos is 25 kJ mol1. Try placing the soda bottle next to the wall of a brick building, after getting permission from the buildings owner, of course.