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.
The large realistic model has removable organs that can be studied and set back into the correct position.
This kit focuses on teaching children about electricity and how electronic devices work!
Working model representing the sun, earth, and moon and their relationships.
Cool new Pi tee featuring ultra soft and light blue 100% cotton shirt.
This toy combines the wonders of Sea Monkeys and glow-in-the-dark fun, all in one!
Ever wonder how to survive in the wilderness? These cards can help!
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