The experimental design process is an important part of science learning and this project allowed students to integrate STEM with their energy unit. In small groups, students chose to create a working windmill, a solar cooker, or clean up an oil spill. Students were challenged to select from a fixed materials list, work within a set budget, time constraints, and a limit of three adjustments to their design with testing in order to find success. Due to outside weather conditions, students used lamps as an alternative to the sun. Groups met with varying levels of success with fun and learning occurring for all.