Hundreds of thousands of youth conducted the world’s largest, youth-led science experiment as part of 4-H National Youth Science Day (4-H NYSD). The “Motion Commotion” experiment challenged youth to explore the physical and human factors of motion in distracted driving. The experiment was conducted using every day materials to explore physics in the real-world. In the first phase, youth constructed a simulated runway to analyze the speed, momentum and kinetic energy of a car in motion, and explored the science behind the car’s collisions. In the second phase, they led an experiment that uses the same physics principles to demonstrate the consequences of distracted driving.