Rube Goldberg chain reaction project is the perfect project-based STEM challenge for grades 3rd-8th! Here’s everything you need to facilitate a Rube Goldberg Chain Reaction Machine aligned with Forces & Motion and Energy Transfer STEM (NGSS) for 3rd, 4th, 5th, and 6th grade! Perfect for Project-Based Learning! Full Lesson Plan, Teaching Slides, Project Templates, Engineering Design Process Posters, and Simple Machines Posters included! 25 Printable Awards/Certificates are also included! Cele