Build a high-engagement, low-prep STEM program that grows with you. This Growing Bundle collects my best STEM investigations—each one built around true engineering design, fair testing, repeated trials, data tables, graphing, and CER writing. Buy once and get every future lab added to this bundle at no extra cost (price increases as new labs are added). What Students Do Define independent, dependent, and controlled variablesPlan and run repeatable trials with clear procedures and safetyRecord