This is an excellent adjustable Bunsen burner for use with natural gas. The heavy duty cast iron base provides an extra measure of stability. The unit has a chrome plated steel tube with air regulator and threaded needle valve.
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.
A touch of joy. A touch of science. Light responds to your touch and to the music in your room!
Comprehensive collection of 30 fossils.
Illuminate both your room and your mind with this ingenious Periodic Table Lamp.
This adapter-powered butterfly uses Flexinor wires to create a realistic visual effect!
Ever wonder how to survive in the wilderness? These cards can help!
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