These AA battery holders with wires and switch can house 3 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!
Learn how solar cells transform light into electrical energy with this great kit!
This illuminated orbiter is great for demonstrations in the astronomy classroom!
See the solar system in action!
This kit allows to build up to 3 different robots!