Size of a dime yet transmits both sides of a phone conversation to any FM radio. No battery needed to create a cool science fair project!
Get one of the craziest and coolest kaleidoscopes around!
This great rock tumbling kit comes with everything you need to polish stones and gems!
Discover how solar cells make electricity with this awesome kit!
With 23 hands-on experiments, you can investigate specific weather phenomena as well as the climate system in general.
This classic desk toy will keep you amused! Large, 7 inch tall version.
Build 14 assorted solar robots, some of which can travel over water!