These durable acrylic color filters can be used for a wide variety of optical experiments including optical transmission measurements, solar monitoring, attenuation of laser beams, and demonstrations of laser light’s monochromatic character.
Red, green, blue, yellow and orange filters are included.
See the constellations visible in the Northern Hemisphere on this watch!
Great tarantula specimen for the science classroom!
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.
Every kid needs one of these spheres!
Command robotic creations with this cool construction kit!
This SUPER Erector Construction set is one of the best you'll find anywhere!