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 air 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.
Provides the power to execute all the basic electrostatic demonstrations on an energetic and dramatic scale with up to 350,000 volts!
Experience this sphere powered by the sun!
Build your own 10 inch kaleidoscope with this great kit!
Working model representing the sun, earth, and moon and their relationships.
The cards show the name of the element, the atomic number, group, natural state and common usages!
This black scorpion specimen is great for the classroom setting!