What is the science behind the Coke and Mentos experiment?
As the Mentos candy sinks in the bottle, the candy causes the production of more and more carbon dioxide bubbles, and the rising bubbles react with carbon dioxide that is still dissolved in the soda to cause more carbon dioxide to be freed and create even more bubbles, resulting in the eruption.
How does the Coke and Mentos experiment work for kids?
A bottle of soda is full of carbon dioxide (the bubbles.) The Mentos drops to the bottom of the bottle, forming lots and lots of bubbles on its pitted surface along the way. When all of this gas is released it forces the liquid up and out of the bottle in a giant whooshing geyser of sticky soda.
What is the independent variable in the Coke and Mentos experiment?
If you drop a different number of Mentos into several different kinds of soda, how do you know what makes the larger geyser, the number of Mentos or the type of soda? independent variable and the dependent variable. The independent variable is the thing that changes in the experiment.
How is Coke and Mentos a physical reaction?
Since the addition of Mentos is just speeding up a physical process (i.e. the carbon dioxide gas coming out of solution), the reaction is a physical reaction. This is a state change for the carbon dioxide gas from being dissolved in Coke to a gaseous state.
What do I need for Mentos experiment?
Experiment Materials
- 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 you’re cleaning it up, and it will usually create a bigger blast)
What can I mix with Coke and Mentos to make foam?
To get the soda to explode, they prepared nine rolls of Mentos (around 126 Mentos discs) mixed with baking soda in a plastic cup. They also prepared a cup of green food coloring to make the eruption more visually appealing.
Does the Mentos trick work with any soda?
The trick works with any carbonated beverage. It works with regular cola, orange soda, root beer, etc. It’s actually very cool when performed with tonic water under a black light because you get a glowing blue fountain. However, you can use seltzer water (very easy cleanup) or any soda.
Does crushed Mentos affect the exploding Coke® and Mentos® experiment?
You have probably seen it on You Tube™ — the exploding Coke® and Mentos® experiment. But what is it that makes the reaction happen, and what factors cause a larger or smaller eruption? In this science project, you will see if using crushed Mentos candies, instead of whole Mentos candies, will affect the reaction.
How do you make a soda test with Mentos?
Procedure: 1 Stack the Mentos candies (approx. 2 Cover the opening of the test tube with an index card or similar slim, small paper. 3 Invert the test tube, holding the cover in place. 4 Place the soda bottle outside in and area that can get dirty. 5 Open the soda and place the index card over the bottle opening.
How do you make a soda volcano experiment?
Open the soda and place the index card over the bottle opening. Pull the index card away swiftly, dropping the candies into the soda. Be prepared: the eruption happens quickly, so back up fast! Observe the eruption—height, trajectory, duration, etc. Record your observations in a logbook.
How long does it take to make a coke and Mentos volcano?
It really only takes a few minutes to setup the mentos and coke volcano experiment. And it’s a great way to learn about chemical reactions. It’s also a lot less work than your classic paper mache volcano.