This classroom-quality laser ray box can be used in a wide variety of general optics experiments and demonstrations involving glass or acrylic prisms, lenses, or mirrors. The box emits 3 red beams, each of which can be switched on or off independently of the others; you can also configure the beams into parallel, convergent, or divergent orientations. The unit takes 3xAA batteries, not included.
Great reference card for chemistry and physics students.
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.
Shake the Pet Tornado clockwise and watch the mini tornado funnel form before your eyes!
Build a hand that realistically moves its fingers using shape memory allow technology!
Build over 100 exciting electronic projects with this easy to use kit!
Discover how solar cells make electricity with this awesome kit!