Mmmmm! Radioactive "candium!" Nuclear physics or chemistry classes use M&M'S® to demonstrate the process of radioactive decay. Individuals pour out a bag of candies and record the number that fall M-side-up to represent the number of atoms that have decayed. They repeat the process several times, removing decayed atoms. There are a data table, analysis questions, and a graphing assignment included. Of course, your young scientists will want to eat the candy when they are finished!