Discover motion and energy with the Spinning Cups STEM Kit — one of the most engaging hands-on STEM activities for exploring how balance, force, and rotation work together. Students build a simple spinner using cups and a central axis, then observe how centripetal force, symmetry, and momentum interact as it spins. This interactive experience helps students connect motion and force to real-world physics concepts, all while developing problem-solving and engineering skills through play and experimentation. This ready-to-use kit makes an exciting and effective addition to any force and motion unit, with no prep required and enough flexibility for stations, small groups, or whole-class demonstrations. Why Teachers Love This Kit: Learning Concepts: Centripetal force, symmetry, momentum, and rotation (NGSS PS2) NGSS Aligned: Supports Next Generation Science Standards for Forces and Interactions Setup & Use: Zero prep, reusable, and ideal for small groups or STEM stations Perfect for physical science units, STEM rotations, and force and motion lessons in grades 3–5.