These AA battery holders with wires and switch can house four AA batteries, and you will find they are excellent for use in any hobby or science project. Each holder includes wire leads for easy hook-up, as well as a simple on/off switch, allowing you to exert greater control over your project and battery use. Recommended for electronics applications, science fair projects, and more! Set includes 10 holders.
Buy Newton's Cradle or balance balls here! This classic science desk toy that will keep you amused and teach you physics.
This genuine meteorite is great for the rock collector in your family!
Build a model green house and 9 other green energy-related devices with this great kit!
Check out this high-quality gyroscope!
Build 14 assorted solar robots, some of which can travel over water!
This is a classic demonstration toy of the powers of magnetic fields!