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The National Science Education Standards recommend that middle school students have a clear understanding of the history, composition, and formative processes that shape the Earth. To accomplish this goal, the authors use an engaging activity that uses candy chips to explore the rock cycle and model the different types of rocks. This is a culminating activity to reinforce the main concepts of rocks and the rock cycle that have been previously introduced. This activity, which is described here, was inspired by a lesson found on the Utah State Office of Education website entitled “A Chip off the Old Rock.”