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! Beware of the 20-foot stream of soda that will erupt when you pull off this experiment. The lower magnification image of the Fruit Mentos has smooth patches in contrast to the lower magnification image of the Mint Mentos, but the candy coating is not uniform. 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. This bread mold experiment will help your child learn about mold, and he'll develop important hypothesis-making and experiment-designing skills. Diet Cola and Mentos Depending upon the number of Mentos dropped into the bottle, the spray height can vary between a few inches and tens of feet. We used a FEI Quanta 200 electron scanning microscope. The goal of this project is to explore the eruption of carbon dioxide when the candy Mentos dissolves in Diet Coke. As strange as it might sound, the Mentos Geyser Experiment never actually started out using Mentos chewy mints. 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. In addition to the six outlined experiments, weve included suggestions for further fun, giving your future chemist more opportunities to learn and grow. 1 So the relatively small amount of caffeine in a 2 l bottle of Coke doesnt significantly affect the reaction. Dont forget to look back at the amazing eruption of soda. So, when a Mento is dropped into some Coke, the acidity of the soda mixture quickly dissolves its shell, releasing the chemicals. The average distance traveled by the sodas spray during the explosion is given in Table II. 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. It is very simple to do and requires minimal tools and equipment to execute correctly. 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. 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 answer is a little more complicated than you might think. 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. Observe and explain the Mentos and Diet Coke experiment. So, if you want some quick and easy fun, get some paper towels becausewere about to make a sweet mess. Why do Mentos turn ordinary bottles of diet soda into geysers of fun? In the Mentos and Diet Coke experiment, Arnold was trying to prove that the Diet Coke would explode if he put The secret is to turn your attention away from the spraying soda and concentrate on setting up an experiment where a single variable is isolated. Oddly enough, this container was actually a pre-form or 2-liter soda bottle before it was blown up into a big bottle. Does Colorado have a defensive driving course? What are the variables of the soda and Mentos experiment? 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. 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! Quantitative Observation Copyright 2023 Education.com, Inc, a division of IXL Learning All Rights Reserved. Its true that putting Mentos into a bottle of Coke will cause an impressive geyser of soda to erupt from the bottle. And its a great way to learn about chemical reactions. What is the independent variable in the Mentos experiment? Set up three tests: warm soda, room temperature soda and cold soda. Under these conditions, carbon dioxide begins to degas from the solution, forming gas bubbles. What is the dependent variable in Coke and Mentos experiment? The Diet Coke and Mentos reaction was the subject of a 2006 Mythbusters episode1 and first shown in 1999 on the David Letterman Show, and has become a popular in-class physics and chemistry demonstration from elementary school to college level classes. WebSince which invention of cola, the gegner between Pepsi and Coca-Cola (i.e., Coke) has had in existence. This will work on any drink that is carbonated. Toll Free: 800-223-9080 Diet Coke and Mentos: Testing New Variables Hall, Magdalena Jaramillo, Cully Little, and Zach Russell, and my graduate research assistant, Jon Jones. 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. We found that the max amount of mentos with the largest explosion was 4 mentos, it went 350 cm high. The majority of us have probably experimented with dropping multiple sugary, round mentos into a bottle filled to the brim with coke. 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. The uncertainty of the fall times was roughly 10%. 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. 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.