These AA battery holders with wires can house 4 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. Recommended for electronics applications, science fair projects, and more! Set includes 10 holders.
This science kit is an essential introduction to physics knowledge!
Defy gravity with this cool balancing eagle!
Command robotic creations with this cool construction kit!
Build a tumbling robot that gets up right after it has fallen down, without any outside help!
The Hoberman Sphere expands and contracts with a magical motion so fluid and simple that kids can't help but play with it for hours.
Learn all about the science of light, optics and visual perception with this wonderful kit!