I also posted the video on a new online video sharing site called YouTube (YouTube was only 7 months old at the time), and as they say, the rest is history. But the bottom line was that we needed to find a way to standardize the drop of the Mentos. Hydrogen peroxide can irritate skin and eyes, so put on those safety goggles and ask an adult to carefully pour the hydrogen peroxide into the bottle. These are CO2 bubbles leaving the soda and attaching themselves to the object. Slip the tissue in, quickly seal the bag and step back. To make a soda bottle volcano, first combine 2 parts vinegar, 1 part water, and a squirt of dishwashing liquid. 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 . Be sure to thank the building’s owner and to hose off the wall of the building when you are finished! your results could help determine the next Mentos Geyser craze! Put one or two Mentos in a balloon and attach the balloon to the top of one of the smaller bottles of soda , letting the Mentos fall into the bottle of soda . As luck would have it, the solution to the problem was within arm’s reach of the Wintergreen LifeSavers in the candy aisle—it was Mentos chewy mints. It’s been called the “vinegar and baking soda” reaction for a new generation. Check to make sure your measuring scale is in place (counting bricks or using an alternative scale against the wall). Enough waiting . You could use a beaker or a graduated cylinder to measure the remaining liquid in milliliters. My cohost for the KUSA-TV science segment was the lovely Kim Christiansen. Try this. . . C) Atomic Fireballs This activity is probably best done outside in the middle of an abandoned field or on a huge lawn. But the amazing eruption that takes place when Mentos are dropped into Diet Coke is not a chemical reaction at all! How do you make Coke and Mentos foam? This bubbling process is called nucleation, and the places where the bubbles form, whether on the sides of the can, on an object, or around a tiny grain of salt, are the nucleation sites. 1 sleeve mint Mentos; 2 16-20 oz. This low temperature allows the maximum amount of CO2 to dissolve in the soda, keeping the carbonation levels as high as possible. Leave the snow out to dry and reuse it again… and again. 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. Drop an object like a raisin or a piece of uncooked pasta into a glass of soda and notice how bubbles immediately form on the surface of the object. Each Mentos mint has thousands of tiny pits all over the surface. The simplest method is to let the unopened bottle sit in the sun for several hours. . The goal is to drop all seven Mentos into the bottle of soda at the same time (which is trickier than you might think). Zip the sandwich bag shut but leave a corner open, enough to fit the tissue full of baking soda in. In fact, it’s not really a reaction at all – or at least it’s a physical reaction rather than a chemical one. The upshot: If you really want to get the most foaming action for your buck, conduct the Diet Coke and Mentos experiment at high altitudes. The balloon will inflate with released CO2 gas and soda . the foaming sinks in the soda. This final step is very important . If you shake a bottle or can of soda, some of the gas comes out of the solution and the bubbles cling to the inside walls of the container (thanks to tiny pits and imperfections on the inside surface of the bottle called nucleation sites). but highly recommended! Be sure that the soda bottles are all the same brand and type. Watch as they vanish right before your eyes in water as they grow. … Repeat the same procedure for the bottle of soda at room temperature and for the bottle of warm soda. The Brand Test You might be asking yourself, “Can I use the Mentos Geyser for my science fair project?” The answer is YES, but you’ll need to learn how to turn a cool science activity into a real science experiment. Immediately record the data for the cold soda test. You might think that there is some ingredient in a Mentos candy causing a chemical reaction with the soda, like the way baking soda reacts with vinegar. This makes it more dangerous and only adults should handle the hydrogen peroxide. . and got soaked in Diet Coke on live television. When you pull your finger out of the way, all seven Mentos should fall into the bottle at the same time. Unfortunately, Kim got so caught up in the fun that she forgot to do both . 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. Drop two Mentos into the second bottle, and so on until you’ve completed all ten bottles. While I had performed variations of the Mentos Geyser experiment on television many times from 2001 to 2004, my performance of the demo in September of 2005 in the backyard of NBC affiliate KUSA-TV in Denver proved to be the tipping point as the demo went from relative obscurity to Internet sensation. Some people fashioned a tube out of paper while others used a piece of plastic tubing to load the Mentos. today’s lesson on physical reactions. But don’t forget to look back at the amazing eruption of soda. A two-liter bottle of diet soda (diet soda makes for a much better reaction, but you can use regular soda if you like. If you’re doing a science fair project, your initial question might be, “What is the effect of the brand of soda on the height of the geyser?” Why are Mentos so Special? Oddly enough, this container was actually a “pre-form” or 2-liter soda bottle before it was blown up into a big bottle. You can try this with various forms of soda, but a 2 liter (0.53 US gal) bottle of Diet Coke will have the most dramatic explosion, often rising more than 10 feet (3 m) in the air. Probably the most interesting experiment with Coca Cola and Mentos. Superabsorbent giant growing polymer beads that absorb 150 times their weight in water! . … The answer lies in the solubility of gases in liquids. Open the bottle and dip the thermometer down into the soda. * Liquid dish washing soap. Warm soda tends to fizz much more than cold soda. Again, the choice of diet over regular soda is purely a preference based on the fact that erupting regular soda becomes a sticky mess to clean up because it contains sugar. If you want to have a smaller explosion, consider buying a smaller bottle, such as a 20 oz bottle. The Diet Coke and Mentos geyser is the result of a physical process rather than a chemical reaction. The foaming is aided by the presence of food additives such as potassium benzoate, aspartame, sugars, and flavorings in Diet Coke, … . Is there another way for the CO2 to escape? THE TIME The faster the mentos sink the bigger the reaction and the faster it will go. Repeat a … Add 8 drops of your favorite food coloring into the bottle. In a separate small cup, combine the warm water and the yeast together and mix for about 30 seconds. As they say, the simplest design usually turns out to be the best and most elegant solution to the problem. Position the bottle on the ground so that it will not tip over. Many soda geyser-ologists believe that seven Mentos produce the highest-shooting geyser. If you want to examine the volume of the geyser instead of the height, make note of the volume of a full bottle of soda before you drop the Mentos into it. How does generic soda stack up against the big name brands? When you drop a Mentos into the soda, tiny bumps on the candy surface give the carbon dioxide molecules a nucleation site or place to stick. Because Mentos mints didn’t have holes in the middle like LifeSavers, getting them into the bottle was tricky. If you’ve ever added Mentos to Diet Coke to see the eruption, this experiment is for you! Place one bottle of Diet Coke in the refrigerator and let it sit overnight. Within seconds of dropping the candies into the soda, a huge geyser would erupt from the bottle. The Mentos Geyser became one of my featured demonstrations both on television and during my live stage presentations. As strange as it might sound, the Mentos Geyser never actually started out using Mentos chewy mints. A friend or parent with a video camera is a great way to watch and document the results of your experiment, but you’ll also need some specific measurements or data. The Geyser Tube toy is currently available in toy stores and mass-market retailers throughout the country thanks to our distributor, Be Amazing Toys! It takes the vinegar and baking soda routine to a whole other level. Record the temperature. The next few months were spent building trigger devices ranging from plastic tubes with sliding doors to magnets that held metal stoppers in place to an elaborate battery-operated switch that was triggered by a motion detector. Does warm soda shoot up higher than cold soda? Activity guide included with 4 experiments! The gas released by the Mentos literally pushes all of the liquid up and out of the bottle in an incredible soda blast. Using any more than seven Mentos is just a waste, according to these soda-soaked science enthusiasts. You guessed it . What do your results reveal about the effect of the number of Mentos on the height of the geyser? The balloon will inflate with released CO2 gas and soda . How do you make Coke and Mentos foam? Place the second bottle in a place where it can reach room temperature overnight. If you were ever a twelve-year-old, you know about the classic Mentos and Coke experiment. 2. bottles of the same soda (diet works the best) Plastic cups; Smartphone or video camera for slow motion playback; Prepare the candy by removing from the packaging and placing each variety in its own plastic cup. This is a great topic for a science project—you’ll need lots of soda and Mentos, and a few friends to help record all of the data. The key is to keep every launch fair and to make sure the only variable is the temperature of the soda. . What is the hypothesis for the Diet Coke and Mentos experiment? 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The 200+ Best, Hidden & Most Powerful Features & Changes for iPhone, 22 Things You Need to Know About iOS 14's Newly Redesigned Widgets for iPhone, Best New iOS 14 Home Screen Widgets & The Apps You Need, 13 Exciting New Features in Apple Photos for iOS 14, 9 Ways iOS 14 Improves Siri on Your iPhone, 16 New Apple Maps Features for iPhone in iOS 14, 19 Hidden New Features in iOS 14's Accessibility Menu, Every New Feature iOS 14 Brings to the Home App on Your iPhone. Load seven Mentos into your paper roll and drop them into the soda. . Let’s start with the soda . Drop one Mentos into the first bottle and record the height by counting the wet bricks (or set up your own scale behind each soda bottle). What is the effect of temperature on the height of the geyser? Never use a stove or microwave to heat a bottle of soda. Other methods include using a large plastic test tube to hold the Mentos or using my Geyser Tube toy invention, which was created to solve this very problem. One method for doing this is to roll a piece of paper into a tube just big enough to hold the loose Mentos. Here’s what you need: – 16 ounce plastic soda bottle – ½ cup of hydrogen peroxide (6% solution, available at beauty supply stores) – 1 tablespoon dry yeast – 3 tablespoons warm water So, 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 into the bottle. A) Skittles Measuring the Volume of the Geyser The result is an impression both due to the fact that many Mentos were used and the same experiment was used which made everything look like a volcano. 2 liters!) Then make comparisons, create a chart with your data, and draw some conclusions. 7901 Southpark Plaza, Suite 106Littleton, CO 80120, Steve Spangler’s Geyser Tube toy (optional . Use your data from the previous test to determine the standard number of Mentos to use for this test. Couple this with the fact that the Mentos candies are heavy and sink to the bottom of the bottle and you’ve got a double whammy. This is because as the liquid is heated, the gas within that liquid is also heated, causing the gas molecules to move faster and faster. 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. That's been around since at least the 1980s, although originally creative science teachers used Wint-O-Green Lifesavers threaded onto a pipe cleaner to induce the fountains of foam in soda bottles. Well inside the coke or soda, there is dissolved carbon dioxide gas which makes the soda taste fizzy when you drink it. The experiment uses Hydrogen peroxide and dry yeast. One roll of Mentos candies. Each bottle will receive a different number of Mentos. The only variable you’ll change in this test is the brand of soda while everything else remains the same (the number of Mentos and the amount of soda). It needs to be wide enough to use as loader for the Mentos. Drop Mentos into a bottle of soda and run away from the 20 foot geyser. Although that may sound somewhat exciting, the Coke and Mentos Geyser is the boring “science teacher” version of experimenting with Mentos and Coke. We’ll send you a free experiment every week, plus new products and offers. In an experiment popularized online, what candy creates an explosive geyser when dropped into a 2-liter Diet Coke bottle? Why does the Coke and Mento Rocket work? Great demo for a classroom & can even be a science fair! this anticipation is killing me. Everyone found their own method of quickly dropping the Mentos into the soda. The faster it sinks, the faster the reaction can happen, and faster reaction = bigger geyser, the slower reaction may release the same amount of foam overall, but also a much smaller geyser. . You might think that there is some ingredient in a Mentos candy that causes a chemical reaction with the soda pop, like the way baking soda reacts with vinegar. Just think . The Temperature Test However, by the end of the 1990s, the manufacturer of Wintergreen LifeSavers increased the size of the mints (no one was ever certain why this happened), making the diameter of the candy too large to fit into the mouth of the soda bottle. * 1/2 cup 20-volume hydrogen peroxide liquid (20-volume is a 6% solution, ask an adult to get this from a beauty supply store or hair salon) * 1 Tablespoon (one packet) of dry yeast. To get the best results in a science experiment you need to standardize the test conditions as much as possible. Then, put the mixture in an empty 2-liter soda bottle and add a spoonful of baking soda, which will react with the vinegar to make your volcano erupt. Fortunately, the maker of Mentos (Perfetti Van Melle) also liked the design, and we launched the Mentos Geyser Tube toy at the New York Toy Fair in February 2007. It’s safe, simple chemistry that produces a wide variety of worms you can make with this kit. We even played with ways of using the Geyser Tube to trigger multiple soda geysers in a method similar to a Rube Goldberg machine. The brand of soda is the only thing that changes (the variable). It’s been called the “vinegar and baking soda” reaction for a new generation. It just won’t be nearly as awesome.) Let’s start with the bottle of cold Diet Coke. There are several theories, but it’s thought that the many small pores on the candy’s surface speed up the release of carbon dioxide (CO 2) gas from the soda as they give a larger surface area for the reaction to occur over, causing foam to erupt at a super fast rate. The original reason I invented the Geyser Tube toy was to find a way to standardize the actual drop of the Mentos.