Supplies Needed:  

Diet Coke

Pack of Mentos

#1: Find a good place to do this experiment. It needs to be a place where Diet Coke can get everywhere. Outside in the grass is best!

#2: Place the Diet Coke on a flat surface and remove the cap

#3: Unwrap about half of the pack of mentos

#4: Drop the half of pack of mentos into the Diet Coke at the same time then run!

#5: You should see a huge geyser of Diet Coke!