This is not your ordinary balloon--this huge, gargantuan, mammoth balloon can be blown up to a whopping 36 inches. Made of biodegradable natural latex, this will truly blow away any other balloons you may blow up at your next birthday party. Use for delightful play--can also be used to teach in lessons about atmospheric pressure or air molecules
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.
Use this kit to introduce electromagnetic principles in the classroom setting!
This adapter-powered butterfly uses Flexinor wires to create a realistic visual effect!
Illuminate both your room and your mind with this ingenious Periodic Table Lamp.
Build your own 10 inch kaleidoscope with this great kit!
Comprehensive collection of 30 fossils.