A highly affordable set of 3 laser pointers, perfect for performing experiments involving refraction in the classroom or at home. Light refracts differenly depending on the wavelength of the light. As such, this kit includes a red, green, and blue laser pointer, each of a different wavelength, in order to give a sample of the refractive properties of light at different wavelengths along the whole spectrum of visible light. Shine them through a prism or a diffraction grating and observe the differences! Makes for a great entry-level science fair project or fun classroom activity.
Note: Each laser pointer requires 2 AAA batteries; NOT included
Green: 532nm +/- 10
Blue: 405nm +/- 10
Red: 650nm +/- 10
A massive mounted set of 100 rocks and minerals found in the US,
Discover a world of kaleidoscopic effects within this perfectly clear prism of the Light Crystal!
This top of the line 21 inch tall Galileo thermometer features 10 floating spheres.
NEW 2016 DESIGN! This hip red tee features Pi to 1000 decimal places on an ultra soft 100% cotton shirt.
With 23 hands-on experiments, you can investigate specific weather phenomena as well as the climate system in general.
Build a robot that's an artist too!