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Gecko Marble Run Expansion Bundle – Push the Limits of Motion & Design An Easy Peasy Science bundle that expands your Gecko Run with four dynamic new building challenges. The Gecko Marble Run Expansion Bundle is an Easy Peasy Science bundle that brings together four of the newest and most exciting Gecko Run expansion packs, giving builders even more ways to experiment with motion, force, and track design. These innovative add-ons plug directly into your existing Gecko Run system, transforming simple marble runs into a dynamic physics playground. With new launch mechanisms, spinning elements, flexible joints, and routing controls, students can design complex tracks while exploring how speed, angles, momentum, and energy influence motion. As builders test new configurations, adjust variables, and refine their designs, every build session becomes a hands-on STEM lab where experimentation and problem-solving na