Showing all 9 results Default sorting Sort by popularity Sort by latest Sort by price: low to high Sort by price: high to low Sale See Details Focus on Energy $9.95 – $24.95 Sale See Details Focus on Friction $9.95 – $24.95 Sale See Details Focus on Gravity $9.95 – $24.95 Sale See Details Focus on Inertia $9.95 – $24.95 Sale See Details Focus on Light $9.95 – $24.95 Sale See Details Focus on Magnetism $9.95 – $24.95 Sale See Details Focus on Momentum $9.95 – $24.95 Sale See Details Focus on Waves $9.95 – $24.95 Sale See Details Hands-On STEM (Set of 8) $79.60 – $199.60