This is not your ordinary sphere. By lightly grabbing two ends of this sphere and pulling, you can make it expand over 10 times in volume. And with glow-in-the-dark capabilities, you can enjoy the Hoberman Sphere in the dark. You can play catch with it, amaze your friends, even put it over your head. The sphere makes a great gift for both kids and adults, or for anyone who enjoys fascinating gadgets.
Learn how solar cells transform light into electrical energy with this great kit!
Illuminate both your room and your mind with this ingenious Periodic Table Lamp.
Heavy-duty microscope for high-school and college biology labs. Magnification of up to 1000X.
See the solar system in action!
Perform awesome experiments using everyday materials found in any kitchen!
Build a model green house and 9 other green energy-related devices with this great kit!