oking for an engaging, hands-on way to teach isotopes, percent abundance, and average atomic mass in AP Chemistry? This M&Mium Isotope & Mass Spectrometry Lab transforms abstract concepts into a student-driven modeling experience where learners act as scientists analyzing a fictional element using real data. Students use M&M candies to represent isotopes, collect and analyze quantitative data, and apply their results to build mass spectrometry understanding—all while developing essential AP Chem