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.]. However, as more experiments were done, some using Diet Coke which has zero caffeine, this theory was ruled out. Warning - you are about to disable cookies. We constructed a bottle stand (roughly 10 off vertical) to prevent the bottles from tipping over and the liquid from falling back into the bottle. Experimental measurements suggest that as many as 14 million bubbles are produced per liter of soda in this experiment.[19]. It should not introduce any new information, but rather summarize the key points made in the discussion section. View the Mentos Geyser Experiment here! What happens when you drop Mentos in a bottle of coke? What is the conclusion of Mentos and Coke experiment? What is the independent variable in the Mentos experiment? 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). 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. Next, some thought that the pH of the liquid was responsible for the vigorous reaction. The independent variable was the altering of each Mento. 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. The uncertainties are approximately 10%. This must been coined as the Pepsi Paradox. Use your data from the previous test to determine the standard number of Mentos candies to use for this test. [3] Steve Spangler's televised demonstration of the eruption in 2005 became popular on YouTube,[4][5][6] launching a chain of several other Diet Coke and Mentos experiment viral videos. 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. Make sure your scale is in place, whether youre measuring by counting bricks or using an alternative method. The measured contact angles and minimum works for bubble formation are given in Table IV. The Diet CokeWint-o-Green reaction loses more mass and the spray travels farther than the Diet Cokerock salt reaction. [9][10], In the 1910s, Wint-O-Green Life Savers were used to create soda geysers. The pressurized conditions of the bottle and the surface tension of the water keep the gas in solution, even though it wants to escape (the gas that escapes makes the fizzy sound you hear when you open the bottle) (Science Buddies, 2012). This bubbling process is called nucleation. The diet coke erupted like a volcano. Why does Diet Coke and Mentos explode more than regular Coke? 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. 2023 Cool Kid Facts. Its time to put your favorite soda to the test in this fun experiment. What type of chemical reaction is Coke and Mentos? Please follow us on Medium and on Instagram, thanks! 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. What properties do coke and mentos have that enable them to react so vigorously with each other? 5 and 6. And you may not have a friend for a day or two until they forgive you. 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 is why bottling plants pump carbon dioxide into the cans or bottles when the fluid is just above freezing, usually around 35 degrees Fahrenheit. 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. What is a good hypothesis for Mentos and Diet Coke? Or, attach plastic piping or tubing to extend the openings neck. This size image was chosen for comparison between samples because the samples imaged were quite rough and had significant curvature, and images larger than 100squarem often resulted in a z range larger than 24m. Webfeaturing the famous Diet Coke and Mentos experiment and knew its basic Further research yielded the following background information. It is very simple to do and requires minimal tools and equipment to execute correctly. The participant got it right for $8,000, saying: I saw it on TV, and I bought Mentos and a 2-liter bottle of Diet Coke. There really arent that many supplies you need to make a mentos and coke volcano. Does warm Diet Coke create a greater geyser explosion than cold Diet Coke does? These claims are also supported by data from the liquid gum arabic trials. (Gruber, 2019). 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. As the liquid is heated, the gas within that liquid is also heated, causing the gas molecules to move faster and faster. 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). Big news media outlets like The Wall Street Journal, Rolling Stone and GQ Magazine wrote about the experiment which helped it become known worldwide like we see today (Grobe & Voltz, n.d.). Make comparisons, create a chart with your data and draw some conclusions. Load seven Mentos into your paper roll or yourGeyser Tubeand drop them into the soda and immediately record the data. We put 4 mentos pieces into the bottle of diet coke. Repeat the process, varying the opening that the soda erupts from. ", "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? The first Coke and Mentos Experiment was conducted on the Late Show with David Letterman in 1999 by The Mareks Kid Scientists. Although mentos look smooth, they are in fact covered with layers upon layers of bumps and rough edges, making them filled with nucleation sites. 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. Turns out that diet coke, which gets its sweetness from artificial sweeteners such as aspartame, is more commonly used than its regular counterpart. . 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. This, in turn, allows the soda to form smaller bubbles that can retain its structure for longer due to the reduced surface area of the bubble. 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. The bubbles of gas get larger and as they are lighter than the cola liquid, they quickly shoot to the top of the bottle. Open the soda bottle, set it down and write down what you observe about it. 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 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. Conclusion: The more mentos you put in a bottle of pop does not necessarily mean a larger explosion. In Eq. Place the soda bottle outside in and area that can get dirty. But there was one added bonus: the restricted hole at the top of the plastic tube helped to build up more pressure in the bottle and launched the soda up to 30 feet into the air! What is the aim of the Coke and Mentos experiment? 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. The Diet This experiment can be visually displayed with photos or videos of the event and a graph of the tables results. With 5 or 6 mentos the explosion went only 330 and 310 cm high. It truly is the perfect chemistry kit for kids who want to explore. Stack the Mentos candies (approx. This science demonstration was popular among chemistry teachers back in the 1980s. However, the brightly colored Mentos the Mythbusters dropped into the soda had a waxy coating added by the Mythbusters team, not the Mentos manufacturers.1. 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. The tubes of candies were threaded onto a pipe cleaner and dropped into the soft drink to create a geyser. Science teachers found that Mentos candies had the same effect when dropped into a bottle of any carbonated soft drink. Finally, we have shown that hotter beverages result in a more explosive reaction. In addition to the six outlined experiments, weve included suggestions for further fun, giving your future chemist more opportunities to learn and grow. The Mythbusters also correctly identified the roughness of the samples as one of the main causes of the reaction. Soda is made of sugar or artificial sweetener, flavoring, water and preservatives. In the Mentos and Diet Coke experiment, Arnold was trying to prove that the Diet Coke would explode if he put Thats why its called a Baby Soda Bottle! 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. [30] However, any carbonated beverage will work. 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 [20] In some cases, dissolved solids that increase the surface tension of water (such as sugars) also increase fountain heights. height Notice how bubbles immediately form on the surface of the object. Record your observations in a logbook. 4). Unscrew soda and put safety goggles on. ), 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). The goal of this project is to explore the eruption of carbon dioxide when the candy Mentos dissolves in Diet Coke. Because Mentos mints didnt have holes in the middle like LifeSavers, getting them into the bottle was a little tricky. 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. Conclusion. Use this worksheet to help you record your observations after doing this experiment. Can I use clear bottom plates for fluorescence? Never use a stove or a microwave to heat a bottle of soda. At the time, my solution was to load the Mentos candies into something called a Baby Soda Bottle a test tube-like container that held an entire roll of Mentos perfectly. For example, cut the bottle top to increase the diameter an inch or more. If spectators were watching your exploits, someone is bound to yell out, Do it again! Thats exactly what youre going to do. The choice of diet over regular soda is just a preference. 8:30 am 5:00 pm (MST), Steve Spangler Science In an experiment, you have two groups: an experimental group, and a control group. Slight adjustments to the positioning of the spout on the bottle or small adjustments to the position of the bottle in the holder can cause the angle of the spray to change, which can affect the sprays range by several feet. Where is the Savannah River nuclear plant? However, the importance of the presence of surfactants in the Mentos cannot be denied. 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. Eruption caused by mixing Diet Coke and Mentos, "Naperville students integral to classic TV bits, but will the fun continue? This is what happens when you combine 200 liters of Diet Coke and over 500 Mentos mints! Does one brand produce higher geysers? Conclusion: The more mentos you put in a bottle of pop does not necessarily mean a larger explosion. Its true that putting Mentos into a bottle of Coke will cause an impressive geyser of soda to erupt from the bottle. [2][10][23][24] When dissolved gas diffuses into bubbles that already exist in a liquid, it is called Type IV bubble nucleation. Why Do Diet And Coke Zero Have A Better Reaction With Mentos? Science teachers started experimenting (as they like to do) with other candies and mints that would have the same effect when dropped into a bottle of soda. So aspartame causes the most mass lost. The images were acquired with a beam energy of 12.5kV and a spot size of 5.0nm. This conclusion is also supported by the ingredients in the Mentos, none of which are basic: sugar, glucose syrup, hydrogenated coconut oil, gelatin, dextrin, natural flavor, corn starch, and gum arabic. What evidence did the team find that the reaction between the Mentos and soda was a physical change? 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. Easy Science for Kids. [21][29], Additional explanations for why diet sodas outperform regular sodas in this experiment have been proposed. The higher magnification image of the Fruit Mentos is zoomed in on one of the rougher patches. Coke has a pH of 2.3 and it made intuitive sense that an acid-base reaction could explain the sudden explosion of sugar. We use cookies to ensure that we give you the best experience on our website. Today Room 1 and 5 did a science experiment together. Try dropping an object, like a raisin or a piece of uncooked pasta, into a glass of soda. The independent variable to this experiment is the Mento because it could stand alone and it does not depend on. Quantitative Observation Do they still make PHILADELPHIA cheesecake filling. The seltzer and tonic water trials had the same expiration date and were manufactured by the same company. Each mint has thousands of tiny pits all over its surface. But it has nothing to do with the mint Mentos actual flavor. Then, make comparisons, create a chart with your data and draw your conclusions. What is the dependent variable in Coke and Mentos experiment? Dont miss our other super-fun and hands-on experiments in our huge online experiment library! This high school science fair project investigates if small changes in your diet alter the pH of your saliva. It is the classic Diet Coke and Mentos "geyser" experiment, but with the added rigor of using the scientific method to answer the question "Which will cause a larger reaction: the sugar in regular Coke or the aspartame in Diet Coke?" To get the best results in a science experiment, you will need to standardize the test conditions as much as possible. To switch between accounts click on the account below. What effect does temperature have on the height of the geyser? Mentos Geyser Experiment Mentos & Coke Experiment. To the naked eye, Fruit Mentos are shinier than Mint Mentos, and therefore should be smoother. This is an urban myth. Observe and explain the Mentos and Diet Coke experiment. WebFound the trial with soda and Mentos at Steve Spangler Science, with tutorial on how at make a huge explosion. 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. Some helpful comments were made by the anonymous referees. In this case, were changing the number of Mentos dropped into each bottle, so everything else has to stay the same. References: The references section lists all the sources that were cited in the SIP, including articles, books, and Its important to use the same number of Mentos for each test and to drop them into the soda bottles the exact same way. What is the fastest way to level up pickpocketing in Skyrim? As the mentos candy sinks in the bottle, the candy The question in the hypothesis was answered too, with the answer being no. The reaction has been performed numerous times on television and the Internet, but has not been systematically studied. Why Do Flight Attendants Hate Serving This Drink to Passengers in Flight? Temperature of a 2l bottle of Diet Coke and mass lost during the reaction when 30g of Mint Mentos is added to the Diet Coke. Unfortunately, Kim got so caught up in the fun that she forgot to do both and got soaked in Diet Coke on live television! The mass 41020g was lost from the aspartameseltzer water mixture and 36020g of mass was lost from the potassium benzoateseltzer water mixture. The results in Table II are comparable to results from previous studies.3 Two to four trials were done for each sample-soda combination. Did a child really die from combining Mentos and Coca-Cola? The solution becomes supersaturated with carbon dioxide when the bottle is opened, and the pressure is released. You want the candies going in the bottle and not falling over the side. Try placing the soda bottle next to the wall of a brick building, after getting permission from the buildings owner, of course. Measure the height of the geyser by counting the number of bricks that are wet once the geyser stops. Enough mass was deposited by the Hawaiian hot spot to form the islands, but the eruptions were comparatively gentle.) [15] Amazing Toys, Spangler's toy company, released the Geyser Tube toys in February 2007. They both ended up having 1 oz out of 8 oz ounces leave the beaker and into the air around too. What is the independent variable in Coke and Mentos experiment? The bottom line was that we needed to find a way to standardize the drop of those Mentos mints. This demonstration illustrates many important ideas in physics, including key principles in thermodynamics, surface science, and the physics of eruptions. These ingredients accelerate the foaming action of the soda very quickly, causing the infamous explosion. This was demonstrated in an experiment that tested 15 types of carbonated beverages with Mentos. Mentos and Diet Coke Experiment. This bread mold experiment will help your child learn about mold, and he'll develop important hypothesis-making and experiment-designing skills. ", "Science of Mentos-Diet Coke explosions explained", "Bubble nucleation from gas cavities a review", "Ethanol as a Probe for the Mechanism of Bubble Nucleation in the Diet Coke and Mentos Experiment", "Does the Mentos and Soda Trick Work With Regular Coke? The carbon dioxide attaches throughout the bead, increasing the amount of time over which the reaction occurs. The average amount of mass lost for the various combinations of soda and samples is given in Table I. Watch as they vanish right before your eyes in water as they grow. Its a fascinating experiment that can get young students interested in science, but we over here at Quantum Outreach have long pondered about the science behind this phenomenon. How does the flavor of Mentos affect the explosion? 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. [Full Guide]. The demo went from relative obscurity to an internet sensation! 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. What are the independent and dependent variables in Coke and Mentos?

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