Small booklet that gets you started in the wonderful world of rocks, minerals and crystals.
Includes answers to these questions:
Easily assemble a working alarm motion detector!
A cool kit that helps you build your very own robotic arm!
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.
This kit focuses on teaching children about electricity and how electronic devices work!
View the glory of space with this hi-tech telescope set!
This black scorpion specimen is great for the classroom setting!