The goal of this highly interesting kit is to simplify a complex task: the investigation of half-life. The general concepts of radioactivity and half-life are explored using the material in this Lab-Aid. Using simulated plastic radioactive atoms (simulats), each student conducts a series of activities that provide graphable data. Students then perform a series of calculations measuring Carbon 14, a radioactive carbon which has been used to date plant and animal remains. Students can easily grasp the general concept of radioactivity and half-life determination through this kit. Completed in a single lab period, this activity can also be used to enhance student math skills. All materials in this kit, for 30 students, are reusable.