Thames & KosmosThames & Kosmos 620417 Electricity and Magnetism

Thames & Kosmos Electricity & Magnetism Science Kit | 62 Safe Experiments Investigating Magnetic Fields & Forces for Ages 8+ | Assemble Electric Circuits with Easy Snap-Together Blocks

Thames & Kosmos Simple Machines Science Experiment & Model Building Kit, Introduction to Mechanical Physics, Build 26 Models to Investigate The 6 Classic Simple Machines

Engino- STEM Toys, Physics Laws: Inertia, Friction, Circular Motion, Construction Toys for Kids 9+, Educational Toys, Gifts for Boys & Girls (6 Model Options)