This is a fantastic experiment. I have used it to reinforce a variety of different topics; rate of reaction, catalysis, activation energy.

Hydrogen Peroxide (20 Vol) is mixed with generous amounts of washing up liquid. Food colouring can also be added but wasn’t in this video. Nothing is observed until the catalyst is added at which point the rate of reaction increases dramatically causing bubbles of oxygen to rise out of the measuring cylinder. A glowing splint can be relit from the bubbles of oxygen.

If you have any other ideas or comments regarding this reaction please email me.

Preparation Time                2 Mins

Difficulty                            1/10

WOW! Factor                    3/10

LINK TO RECIPE

Elephants Toothpaste