These mysterious glass eggs exhibits a magical iridescence! The color of the egg will shift depending on the strength, wavelength, and direction of thge light to which it is exposed. It is thus an excellent teaching tool for demonstrating dispersion of light, and for addressing concepts such as "why is the sky blue?" and "why are sunsets red?" Can also be used as unique decor at the office, or for use in lighted fountains.
A massive mounted set of 100 rocks and minerals found in the US,
This classic desk toy will keep you amused! Large, 7 inch tall version.
Over 300 electronics projects in this kit will keep the young scientist busy!
Command robotic creations with this cool construction kit!
This beautiful candle holder is carved out of natural amethyst!
Build over 60 projects with this deluxe version of the Snap Rover kit!