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

STEM Craft Kit - 25 Engineering Project Ideas - Invention Kit With Over 400Pcs Of Craft Wood, Propellers, Wheels, Hot Glue, Hydraulics And More

Thames & Kosmos Mechanical Engineering: Machines & Vehicles STEM Experiment Kit | Build 20 Mechanical Models, Explore Physics Of Force & Motion |

Thames & Kosmos Roller Coaster Engineering STEM Kit | Design, Build, Experiment W/ Working Roller Coaster Models | Explore Physics, Forces, Motion,

Thames & Kosmos Windbots 6-In-1 Engineering STEM Kit | Build 6 Wind-Powered Bots, No Batteries/Electricity Required | Explore Wind Technology, Gear

Thames & Kosmos Easy Electric Circuits STEM Kit | Essential Circuitry Set | 15 Experiments, 5 Motorized Models - Electricity, Current, Voltage, Leds &

Thames & Kosmos Architectural Engineering | Science Experiment & Model Building Kit | Build 26 Models Of Structures & Structural Elements | A Parents'