These D battery holders can house two D 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 smaller transportable Van de Graaff Generator will easily fit in any classroom!
NEW 2016 DESIGN! This hip red tee features Pi to 1000 decimal places on an ultra soft 100% cotton shirt.
Build a model green house and 9 other green energy-related devices with this great kit!
Build your own 10 inch kaleidoscope with this great kit!
Every kid needs one of these spheres!
This genuine meteorite is great for the rock collector in your family!