In this project based learning unit, students will discover solutions, density, buoyancy, and buoyant force in 3 hands-on explorations. Includes an investigation, exploration activity, and STEM Challenge. A teacher guide and student worksheets will take you step-by-step. Great for Springtime, Easter, or a Matter and Its Interactions unit. Definitely Memorable!This hands-on exploration and teacher guide includes:Correlation to the NGSSTeacher Background Information and TipsScience Investigation J