Build your own double-protected money safe by connecting a buzz alarm circuit and a simple dial lock. Children will be able to see the inner workings of a safe and learn why it’s important to be wise in practicing financial security. Great spy gift for the young aspiring detective or secret agent.
This caffeine molecule mug makes an excellent gift!
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 how solar cells transform light into electrical energy with this great kit!
Cool new Pi tee featuring ultra soft and light blue 100% cotton shirt.
Build your own windmill generator kit by recycling a plastic bottle!
Provides the power to execute all the basic electrostatic demonstrations on an energetic and dramatic scale with up to 350,000 volts!