"Get your motor running with real STEM learning! Discover the science of motion through scientific exploration with colorful, engaging tools and hands-on activities. Explore the science of “how things go” as you conduct investigations, solve problems, and explore early engineering. Features 10 double-sided Activity Cards covering all aspects of STEM, plus key science concepts of gravity, inertia, friction, push/pull, and more! Includes 2 cars, 2 double-sided tracks, 4 weighted blocks, pendulum ball, ladder with 2 removable bars, and a comprehensive Activity Guide with reproducible materials. Ladder measures 9¼""H, tracks measure 12""L, and cars measure 2¾""L. Gender: unisex."