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.
Shake the Pet Tornado clockwise and watch the mini tornado funnel form before your eyes!
Build your own 10 inch kaleidoscope with this great kit!
Working model representing the sun, earth, and moon and their relationships.
This SUPER Erector Construction set is one of the best you'll find anywhere!
Make the coolest 3D pin art on your desk with this amazing desk toy.
Illuminate both your room and your mind with this ingenious Periodic Table Lamp.
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