This lab is EASY PREP, it's hands-on, students are engaged, it includes many physics concepts, it’s STEM, AND you get two of my top selling products in one! I include detailed TEACHER NOTES, Digital and Print student copy, a Digital and Print Kinetic and Potential Energy Card Sort, an Energy Conversion Chart and a KEY for easy grading and prep. Students use parts of the engineering design process to get their marble to stop by using friction, just like a real roller coaster. Students pretend lik