Pepsi and Mentos

    
     Recently in Science, we did a lab about the physical change that takes place when you drop mentos in a bottle of soda. The first part of our lab was designing a way our group could drop a whole pack of mentos, that's about 14 mentos, into a 2 liter bottle of Diet Pepsi. My group used three pieces of paper and rolled them up so they were just a little bigger than the circumference of the mentos. Then, we used an index card to create a barrier between the mentos and the bottle. After practicing many times during class, we finally learned how to slowly pull the index card away so that the mentos would all drop in the bottle at the same time.
     The next day during class, all of the groups walked over to the point so we could test our contraptions and see which group could make the highest gyser of Pepsi. My group went second to last, and our gyser was the highest! The only bad part was
we got sprayed with Pepsi!