Dish soap is placed in large flask with 20 mL of 30% hydrogen peroxide. Two different colours of food colouring are dribbled down the neck of the flask. Add 5 g KI powder and step back. The exothermic reaction produces heat and oxygen gas and a lot of foam. Plunge a glowing splint into the foam. The pure oxygen will cause it to relight until it gets too wet.
This activity is excellent for discussions about catalysts, exothermic reactions and decomposition reactions.
2H2O2 = 2H20 + O2

its called the elephant toothpaste.. check it out!


http://www.youtube.com/watch?v=tnB-uU3w6g8

Reaction of mentos with pepsi.

Wasn't it diet coke that works the best?

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There was a Myth Busters episode on this.

You could do a nice workup on the nozzles used and the height of the geyser.

That should top off, all the Chemistry involved.

do it on this it should make for good debate

Get aluminum shavings, magnesium shavings and iron shavings and thoughly mix and light that bitch on fire. Makes thermite which is hot as lava. Go burn some shit.

Is the magnesium flammable?, I dont understand how the shavings are combustable