Use this kit to build your own infrared light barrier. Detailed instructions will help you put the kit together. Use the finished product for a science project, announcing visitors, warning you of burglars, etc.
Build over 60 projects with this deluxe version of the Snap Rover kit!
This ultimate chemistry set features 250 mind-boggling experiments!
This kit focuses on teaching children about electricity and how electronic devices work!
The large realistic model has removable organs that can be studied and set back into the correct position.
See the solar system in action!
Build a magnetic levitating train with this science fair project kit!