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. To enforce the fairness factor, you must stick with one brand of soda for the entire test. Why educators should appear on-screen for instructional videos; Feb. 3, 2021. Call: 303-798-2778 These are CO2 bubbles leaving the soda and attaching themselves to the object.             Independent Variable: # of High-quality zinc sulfide powder. and duration of reaction My cohost for the KUSA-TV science segment was the lovely Kim Christiansen. Some people fashioned a tube out of paper while others used a piece of plastic tubing to load the Mentos. How Many Mentos Work Best? It may be that the last pops didn’t have as much reactants larger the number of mentos, and the warmer the temperature of the soda, the . Play this game to review Science. You’re going to set up three tests—warm soda, room temperature soda, and cold soda. mentos, Type of Soda                    Height (cm)     Time (s), Ginger Ale                            160                5.0. but highly recommended! HYPOTHESIS: I think that the number of Mentos will affect the height of the explosion because there are more physical reactions happening. more mentos you put in a bottle of pop does not necessarily mean a larger Complete the Observation Sheet by drawing what happened. Hypothesis: Procedure: 1. ex. coke, 4 mentos, Temperature        Height (cm)   Time (s), Cold                  120            10.3, Experiment would cap size affect the explosion height. Types: Activities. This is why at the bottling plant CO2 is pumped into the cans or bottles when the fluid is just above freezing—around 35 degrees Fahrenheit. Five strategies to maximize your sales kickoff Both the Diet Coke and Regular Coke started out as 2000 ml. 20 bottles of 1, 1/2 liters diet Coke. (Okay, it’s a trick question because a 2-liter bottle of soda holds . There are two safe ways to warm the other bottle of soda. 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. pressure build up affect the reaction? Be sure that the soda bottles are all the same brand and type. run away! 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). Let’s start with seven Mentos for our first attempt. One method for doing this is to roll a piece of paper into a tube just big enough to hold the loose Mentos. . Better yet, if we could trigger the drop of the Mentos from a distance, we wouldn’t get as wet. Objective: (Another version would be to use only mentos and diet or regular Coke) To get the best results in a science experiment you need to standardize the test conditions as much as possible. higher the reaction will be. We love fizzing experiments and have been exploring chemistry for kindergarten, preschool, and early elementary for almost 8 years. If you want a more specific measurement, use chalk to mark off 1-foot increments on the brick wall before you drop the Mentos into the bottle of soda. 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. Is there another way for the CO2 to escape? Independent variable: the amount of Diet Coke. They are able to tell me the dependent variable is the size of the reaction that occurs. One roll of Mentos candies. . diet coke and mentos. does the age of the soda affect the reaction? Mentos Height (cm) Time (s) Experiment 2: Quantity of Mentos versus Height Duration of Reaction Independent Variable: temperature of soda Dependent Variable: height and time period of reaction Controlled Variable: diet coke, 4 mentos. How Just add water to make gallons of white fluffy snow in seconds! The answer is a little more complicated than you might think. He wanted to know if you drop different types of mentos in different types of coke will they have different size eruptions? data_and_results.xlsx: File Size: 13 kb: File Type: xlsx: Download File. Our Mentos and soda experiment is a fun example of a physical reaction. Experiment 2: Number of Mentos vs Height & Time of Reaction Independent Variable: temperature of soda Dependent Variable: height and duration of reaction Controlled Variable: diet coke, 4 mentos. 2. You guessed it . The Temperature Test What is the best number of Mentos to use to make the highest-shooting geyser? or that one mentos fell out of the bottle when we tried to put six in. So he went and raised money for fruit and mint mentos and 2 of each different cokes for me. Temperature Height (cm) Time (s) Room 350 10.4 Cold 120 10.3. your results could help determine the next Mentos Geyser craze! Simply dropping Mentos into a bottle of soda to make a geyser isn’t really science—it’s just a fun trick to do in the backyard. Mentos and Diet Coke Experiment Follow-Up. Within the next 12 months, over 800 Mentos Geyser-related videos were posted on YouTube, making the demo one of the most popular pop-culture science experiments in recent history. does the age of the soda affect the reaction? No matter which brand of soda you tested, the warm bottle probably produced the highest-shooting geyser. The dependent variable is the the Diet Coke with the mentos because it depends on the mentos to have a chemical response. Just think . Warm soda tends to fizz much more than cold soda. Teach about controlled, independent, and dependent variables by adding two different types of Mentos in the same soda, or conversely by adding one type of Mentos to various types of soda. The simplest method is to let the unopened bottle sit in the sun for several hours. Make water disappear like a magician. potassium benzoate are all reactants found in soda that increase the The next set of data was the fizz rise inside the bottle itself. where the reaction occurs, and where the gas from the reaction forms. 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. Measuring the Volume of the Geyser Turns from a powder to gel in just seconds. Each bottle will receive a different number of Mentos. . Diet Cherry 7UP                   125                  ? The thing that makes soda bubbly is invisible carbon dioxide (CO2), which is pumped into bottles at the bottling factory using lots of pressure. nucleation sites where gasses produced by the reaction could form, leading to It’s time to take everything you learned about water-absorbing polymers and put your knowledge to the test. The key is to keep every launch fair and to make sure the only variable is the temperature of the soda. An index card (picture below) The Mentos And Coke Volcano Experiment larger the number of mentos, and the warmer the temperature of the soda, the Now, we are going to finish up by filling out the Outcome column on the Tracking Sheet. explosion. Leave the snow out to dry and reuse it again… and again. Wasnʼt that neat?! would putting the cap on after the mentos were put in the pop and letting the Most likely this is because it has the most Place the second bottle in a place where it can reach room temperature overnight. I also recorded my observations from the experiment. The Mentos Geyser became one of my featured demonstrations both on television and during my live stage presentations. Once the geyser stops, pour out the remaining contents of the bottle and measure how much liquid is left. Here’s the question we came up with: and duration of reaction Before going outside to start the experiment, we identify the variables for our experiment. -Mentos have nucleation sites Label the parts of your drawing. height. Soda pop is made of sugar or artificial sweetener, flavoring, water, and preservatives. increases, its volume increases and the pressure increases. 1. Coke, Experiment * Independent Variable: placing a mentos inside a bottle of diet coke. into the soda Using any more than seven Mentos is just a waste, according to these soda-soaked science enthusiasts. It’s time to return to your launching site. Experiment 2: Number of Mentos vs Height & Time of Reaction Independent Variable: temperature of soda Dependent Variable: height and duration of reaction Controlled Variable: diet coke, 4 mentos. 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. Explore the molecule-twisting chemistry of polymers with Larry (a giant growing creature) & 5 of our favorite water-absorbing powders, crystals, & spheres. Diet Coke, Mentos, and Temperature: Data and Observations. Does warm soda shoot up higher than cold soda? . Open bottle of soda Drop two Mentos into the second bottle, and so on until you’ve completed all ten bottles. Measure the height of each plume to compare. What was the independent variable … The regular coke with mentos had a height of 4 cm of fizz. COKE AND MENTOS. Make sure you take pictures. If you experimented with more than one type of diet soda, rank them in order of which produced the most explosive eruption. But the bottom line was that we needed to find a way to standardize the drop of the Mentos. Variables: Independent: Number of Mentos . YouTube videos, MythBusters, an episode of David Letterman, and many others have shown the reaction of an immediate foaming of the coke creating a fountain-like … For example, based on your individual test results, you might have arrived at this recipe for the best Mentos Geyser: By using the scientific method and some critical thinking skills, you’ve successfully turned a great gee-whiz science trick into a research-based science fair project. Place the second bottle in a place where it can reach room temperature overnight.             Dependent Variable: height . Let’s use Diet Coke in this example. . artificial sugar with is a main reactant in the mentos and pop reaction. Determine what it means to be an independent variable and a dependent variable. What is the effect of temperature on the height of the geyser? The winning Geyser Tube design was a clear plastic tube with a special fitting that twisted onto any soda bottle. 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?” Fueled by hundreds of blogs and popular online sharing sites like youtube, this once obscure reaction became an Internet sensation, and the enthusiasm for dropping Mentos into soda continues to grow. The candies catalyze the release of gas from the beverage, which creates an eruption that pushes most of the liquid up and out of the bottle. When I was recording my observations, I paid attention to how the geyser would form. The Diet Coke with mentos had 26 cm of fizz. This final step is very important . Never use a stove or microwave to heat a bottle of soda. It’s been called the “vinegar and baking soda” reaction for a new generation. 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. 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. Place one bottle of Diet Coke in the refrigerator and let it sit overnight. Do the experiment. 1. - As the temperature of air You’ll want to purchase three bottles of Diet Coke and two rolls of Mentos. How does generic soda stack up against the big name brands? Use it to simulate germs - how they travel, where they stick, & how to get them off! VARIABLES: Control variable: the number of Mentos used. This is because the warm air would have a greater This week we used this experiment to learn about the scientific method, specifically independent and dependent variables. 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). It turns out that diet coke is the best kind of difference may be due to different cap sizes or that people put the mentos in Within seconds of dropping the candies into the soda, a huge geyser would erupt from the bottle. 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. Subjects: Basic Principles, Chemistry, Other (Science) Grades: 3 rd - 7 th. Constants: Volume of Coke, shape of bottle, temperature of Coke, Mentos' style of entry.             Dependent Variable: height Measure the height of the geyser by counting the number of bricks that are wet once the geyser stops. 7901 Southpark Plaza, Suite 106Littleton, CO 80120, Steve Spangler’s Geyser Tube toy (optional . 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. 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. Diet soda uses artificial sweeteners instead of sugar, and consequently, it’s not sticky. 1. As the molecules move faster, they diffuse out of the liquid, leaving less gas dissolved in that liquid. Contains a thin layer of zinc sulfide, or Glow Powder. Write with light and so much more with Glow in the Dark Paper. It’s important to use the same number of Mentos for each test and to drop them the same way. EXPERIMENTAL SECTION: Gather eighteen sixteen ounce Coca Cola bottles, ten packages of fourteen mint mentos, about 27 of shards of bricks, a hammer, and a geyser tube. The Geyser Tube toy is currently available in toy stores and mass-market retailers throughout the country thanks to our distributor, Be Amazing Toys! The Big Blast The biggest challenge in the Mentos Geyser experiment is finding a consistent way to drop the Mentos into the soda every time. 3. Try this. Feb. 10, 2021. . The Open the bottle and dip the thermometer down into the soda. We’ll send you a free experiment every week, plus new products and offers. 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. -Aspartame, caffeine and tested different kinds of pop. You’re going to set up three tests—warm soda, room temperature soda, and cold soda. Line up a row of ten 2-liter bottles against a brick wall (see “Measuring the Height of the Geyser”). It may be that the last pops didn’t have as much reactants Oddly enough, this container was actually a “pre-form” or 2-liter soda bottle before it was blown up into a big bottle. HYPOTHESIS: (Select one variable to explore related to the above problem. But don’t forget to look back at the amazing eruption of soda. was 4 mentos, it went 350 cm high. diet coke and mentos. 2.             Controlled Variable: Diet The brand of soda is the only thing that changes (the variable). pressure build up affect the reaction? Carefully open the bottle of diet soda. . It turns out that diet coke is the best kind of Dependent Variable: Reaction rate (seconds) and volatility of the soda (inches) Independent Variable: Type of soda (Coke, Diet Coke, Sprite, Diet Sprite) Controlled Variables: Amount of mentos (5), Size of soda (2 liters), Mechanism used (Steve Spangler’s Geyser Tube), and … Temperature Height (cm) Time (s) Room 350 10.4 Cold 120 10.3. more mentos you put in a bottle of pop does not necessarily mean a larger This activity is probably best done outside in the middle of an abandoned field or on a huge lawn.             Controlled Variable: 4 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. Use your data from the previous test to determine the standard number of Mentos to use for this test. would cap size affect the explosion height? What do your results reveal about the effect of the number of Mentos on the height of the geyser? 3: Number of Mentos vs Height & Time of Reaction 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. As strange as it might sound, the Mentos Geyser never actually started out using Mentos chewy mints. . The variable is considered to be independent because its values are not affected or "are independent … an increased amount of pressure, and a higher reaction height. Pick ONE variable and change it. These tiny pits act as nucleation sites—perfect places for CO2 bubbles to form. Comes with 1 gallon of Slime Goo, 9 different ingredients and 30 shaker cups and lids to send your guests home with a perfect batch of slime.

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