Remember “_Pop Rocks_”:http://www.poprockscandy.com/? I came across them when paying for gas the other day and bought some for my kids to experience. They are so trusting, the oldest let me put some on his tongue and he was a _little_ surprised, LOL. And so were all of the girls. Good, clean, carbonated fun 
“Here is the scientific info.”:http://science.howstuffworks.com/question114.htm