Which mentos explode

HS- ESS Home Accessible Science Activities. Question Which types of Mentos, fruit or mint, will cause the largest explosion with Diet Coke? Hypothesis The fruit mentos will have the bigest explosion, when using Diet Coke.

Materials 1 package fruit mentos 1 package mint mentos 2 two liter bottles of Diet Coke One geyser tube to drop the mentos into. Adapted beaker Goggles Lab aprons ml beaker - adapted. Procedure Have all participants put on goggles and aprons.

Put 7 mint mentos in the geyser tube. Set up the Diet Coke bottle and carefully open it. Save the lid to the close the bottle after the explosion.

Pick up some extra Mentos and Diet Coke, since your kids will want to do it again and again. Step 2: Roll the paper into a tube around a pack of Mentos mints, tape it into place and pull it off of the roll of mints. Step 3: Hold your finger over one end of the paper tube and have your child fill it up with Mentos mints. It will probably hold a pack and a half of mints. Check that the paper is unbent, so that the mints will easily fall from the end of the tube when you remove your finger.

Step 4: Hold the tube of mints over the mouth of the bottle. Older kids can do it themselves. Whether the soda is warm or cold, the process of forming bubbles occurs slowly. However, if there are sharp edges or fine particles in the liquid, these have surfaces that allow the CO 2 molecules to start bubble formation more easily these are called nucleation points.

Mentos tablets contain thousands of these nucleation points and when dropped into Coke, they allow the bubbles to form almost instantaneously. To understand how the surface of the Mento causes the CO 2 bubbles to nucleate, think about how rock candy is made. A string or a stick is immersed into a supersaturated mixture of sugar and water, and crystals of sugar nucleate around the stick.

Without immersing the stick, the crystals will grow eventually, but the stick speeds up the process by providing a surface for nucleation. This pressure effect of gases and liquids also has a more dangerous aspect as well: when scuba divers go to great depths in the ocean, they are breathing air, or specialized gas mixtures, at four or more times atmospheric pressure.

Because of this, nitrogen dissolves into their blood stream in much higher amounts than would happen at the ocean surface. The exploding water in the garbage can demonstrates what happens when a gas, which is confined by pressure, is released suddenly: it expands very rapidly, blowing out everything in its way.

The gas used in this experiment is liquid nitrogen, which was carefully anchored beneath the water. Do not try this at home! Liquid nitrogen should only be handled by experts.