This powder is a patented, safe, non-toxic, environmentally friendly polymer developed specifically to imitate most of the properties of snow. The polymers can expand up to 100 times their original size, and will not melt. Just add water to create "instant snow"!
This classic device is used to demonstrate the conservation of mechanical energy.
Easily assemble a working alarm motion detector!
Ever wonder how to survive in the wilderness? These cards can help!
Build a model green house and 9 other green energy-related devices with this great kit!
Learn all about the science of light, optics and visual perception with this wonderful kit!
Build 14 assorted solar robots, some of which can travel over water!