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 hydrogen 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 glass Erlenmeyer mug makes an excellent gift!
This 10 inch realistic model has removable organs that can be studied and set back into the correct position!
Great tarantula specimen for the science classroom!
The Y-Ball Magnetic Puzzle is the perfect creativity tool for innovators, artists, engineers, writers, students, and you!
Make the coolest 3D pin art on your desk with this amazing desk toy.
High-quality green laser pointer projects a green dot up to an incredible 2 miles away.