This theory, suggested by "Mythbusters," was confirmed by Tonya Coffey, a physicist at Appalachian State University, and published in the American Journal of Physics in Max Roman Dilthey is a science, health and culture writer currently pursuing a master's of sustainability science. Based in Massachusetts, he blogs about cycling at MaxTheCyclist.
The Effect of Temperature on Bubble Solution. How to Make a Realistic Erupting Volcano. How to make a "Volcano Experiment" Easy and Fun. Your Body On: Halloween Candy. Liquid nitrogen should only be handled by experts. Watch the slow-motion video carefully, and observe how the Brute garbage can the blue seamless one deforms during the explosion. The multi-colored garbage can does not fare as well. Scientists are interested in the details of how volcanoes erupt, so they analyze temperature, pressure, and the chemistry of magma.
Some volcanologists study the way gas bubbles nucleate and expand, using laboratory models to simulate magma processes. Gases are dissolved in magma at pressures many thousands of times atmospheric pressure. Volcanic gas is dissolved in magma; at the surface of the earth, it escapes to the atmosphere. The sudden release of pressure on a confined gas produces an explosion. Back to top. How much liquid is left in the bottle?
Is it more or less than the amount that was left when you used whole candies? If you videotaped the reactions, you can watch your videos now. What do you notice from the videos? Use a tape measure and blue painter's tape to mark off the height from the top of the bottle in meters. Then repeat this activity three times, with the bottle in front of the tape-marked wall, video taping it each time. When you review the recordings, use slow motion and pause the recording when the spout is at its maximum height.
Using the tape marks in the background, estimate the height of the spout. Calculate the average height of the fountains for the whole and for the crushed Mentos. What is the difference in height of the eruptions? You can try testing different kinds of carbonated beverages, different kinds of candies with different shapes and textures or using other things to start the reaction, like rock salt, pennies or dice.
Which beverages, candies or other things cause the largest and smallest fountains? Why do you think this is? Does temperature affect the eruption height? Observations and results Was the eruption higher when whole Mentos candies were used compared with crushed candies?
Was less Diet Coke left in the bottle after the reaction with the whole candies compared with the crushed ones? In the Diet Coke bottle the Mentos candy provides a rough surface that allows the bonds between the carbon dioxide gas and water to break more easily, helping to create carbon dioxide bubbles.
Therefore, the particles move faster and want to escape the liquid they are dissolved in quickly compared to cooler temperatures. Try cracking open a can of warm fizzy drink and compare it to one just from the fridge!
A 2 Litre bottle of coke or lemonade have 8 litres of CO2 dissolved in them. Have you noticed, your fizzy drink has tiny bubbles appearing on the side of the glass at a particular spot? This is because bubbles form on tiny pits on the surface of a container. These imperfections are called nucleation sites. On your glass, there are fine imperfections which act as nucleation points where the bubbles can form and escape.
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