Use this deluxe color mixing demo to demonstrate color addition and colored shadows. The 3-colored light (which can be overlapped in any combination,) allows you to experiment with showing color addition, complementary colors, color fatigue, and colored shadows. The 3 light sources of red, green and blue are put into the base and with the turn of the knob, you can experiment with color combination and color additions. It also comes with a white screen for easy viewing.
This quality Dobsonian style telescope features a 76 mm aperture reflector optical tube.
This classic desk toy will keep you amused!
Discover a world of kaleidoscopic effects within this perfectly clear prism of the Light Crystal!
Easily assemble a working alarm motion detector!
This illuminated orbiter is great for demonstrations in the astronomy classroom!
NEW 2016 DESIGN! This hip red tee features Pi to 1000 decimal places on an ultra soft 100% cotton shirt.
At xUmp.com you will find a large selection of scientific products carefully curated by real scientists and educators. We sell everything from educational toys, teacher supplies for science classroom, lab equipment, science toys, science fair supplies, classroom equipment, chemistry glassware, chemistry lab equipment, physics demos, electronics supplies, robots, science kits to geeky science gifts.