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 nitrogen 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.
This genuine meteorite is great for the rock collector in your family!
This microscope is so versatile you can even take it with you on a job site!
This black scorpion specimen is great for the classroom setting!
Build your own 10 inch kaleidoscope with this great kit!
Exciting magnet exploration for ages 8 and up!
Find the hidden crystals when you open your own geodes from this fun set.
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