Monday, November 8, 2010

4th Grade Science Project!

ah - it is time for the 4th grade science project.

So Tiger and the rest of the family sat around dinner discussing options.  We all kinda thought the famous Mentos and Diet Coke fountains would make a good experiment but we know the out come.  Mentos + Diet Coke = fountain.  So then we were trying to think up questions.  Tiger decided that he thought I meant Coca Cola not Diet Coke and we had a whole discussion because he was sure his dad had used regular Coca Cola and not Diet Coke when they'd all done the fountains in the street two years ago.  Out of this discussion came the question.  Does it matter what kind of cola you use?

So we bought 3, 2 liter bottles of the following: 3 of Diet Coke, 3 of Coca Cola, 3 of Coke Zero and a pack of Mentos.  It turns out, Diet Coke + Mentos does have the best reaction as measured by the amount of cola remaining in the bottle after the fountain subsided.

This leaves plenty of room for further investigation though when Dragon gets to 4th grade.  For example?  Does it matter, Diet Pepsi or Diet Coke?  Does 7-UP have the same reaction?  How about Sprite?


Kristin said...

That brings me back...Have ya'll done the old carnation and food coloring project?

FoxyMoron said...

I did not know that about Coke and Mentos. Hmm, might be a good school holiday project.
But why are you saying "liters"? Aren't your measurements still in ounces and the like?

Debbie said...

I remember reading once that it had to be Diet Coke. Wonder why?