Mentos and diet coke experiment

Materials:

• Mint Mentos
  
• Large bottle of Diet Coke.

When you drop the Mint Mentos candy into the Diet Coke it starts to foam and
erupt into the air.

Don't use the fruit Mentos because they have a smoother
surface that will produce a small or no reaction at all.

Explanation:

There are many factors that cause the physical reaction. Ingredients contained in
the Diet Coke (Carbon Dioxide gas, benzoate, caffeine, aspartame, potassium)
and Mentos mints (gelatin and gun arabic) react when combined together.
However many scientists think the primary cause of the eruption reaction may be
attributed to the surface of the Mint Mentos candy itself.  The small holes on the surface
permit Carbon Dioxide bubbles to form very fast and grow rapidly when the Diet
Coke is added.  What results is a big eruption of foam.

You can also prepare a real show with more cokes and a larger number of mentos as you can see on the video!!!!

Comments

[laure]

It could be funny to create an event like that at school, for example the science day