Spectrum discharge tubes contain gases that, when ignited, emit different waves of light (or the gas’s spectral lines). This is how scientists are able to determine the gaseous make-up of planets in our solar system. This helium spectrum discharge tube is approximately 10.25 inches long with electrodes sealed at both ends that are connected to lead wires protected by metal caps. It needs an induction coil spark of approximately 5cm or a suitable power supply for use. Recommended for use by adults only, this is excellent for use in classroom demonstrations or college-level science projects.
The LCD Digital Microscope II is a professional biological microscope at an affordable price. Up to 1600X with digital zoom!
See the solar system in action!
This illuminated orbiter is great for demonstrations in the astronomy classroom!
This toy combines the wonders of Sea Monkeys and glow-in-the-dark fun, all in one!
A combination of three of our great discovery toys, all in one package!
Great reference card for chemistry and physics students.
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