Toy Design Workshop Activity Document, build guide has everything you need to construct an example Toy Design, along with your own designs through the Engineering Process. Perfect for libraries, boy and girl scouts, science fairs, kitchen table, maker's fairs
VWR* Visual Scientifics Photogate Sensor, Four Modes: Gate, Pulse, Pendulum, Frequency, also Works with VISUAL SCIENTIFICS and numerous physical science systems, This kit contains: 2 Photogates, 2Connecting wires, Main photogate hub and control, Wall charger
Small Motor with Leads and Mount, Adapter Pin, AA Single Battery Holder, 1.5-3V Mount, single, Motor Shaft Diameter: 2.3mm, turns at the perfect speed for most projects. Use these for motor powered, cars, boats
Lead Free Solder with Easy Pen Dispenser, Cheap solder ruins irons, destroys projects and makes smoke billow from our ears, affordable, flows and melts beautifully, best dispenser, saves a lot of solder, No longer break off sections of solder