GO-GO AirBoat

air airboat boat buoyancy Cargo cargo container cent circuit coin density depth depth sensing Depth Sensor displacement educational electronics engineering float go-go gogo high school kit learning LED MakeItFloat mass math mathematics motor motorized pennies penny phototransistor physics piston propelled propeller science sensing sensor soldering steam stem technology the scientific method toy toy boat transistor TVY water weight air airboat boat buoyancy Cargo cargo container cent circuit coin density depth depth sensing Depth Sensor displacement educational electronics engineering float go-go gogo high school kit learning LED MakeItFloat mass math mathematics motor motorized pennies penny phototransistor physics piston propelled propeller science sensing sensor soldering steam stem technology the scientific method toy toy boat transistor TVY water weight