If you are using it for one of your Boy Scout requirements, see your handbook for a list of things you can teach. For most recent ILSC, our leader used making a paper airplane to demonstrate the EDGE method. What you teach should fit your audience and any requirement you are trying to fulfill. Reply.
Uses of Thallium. Thallium sulfate, which is odorless and colorless, was used as a rat poison and as an insecticide. This use has been discontinued in some countries, including the USA. Thallium sulfide is used in photocells because its electrical conductivity increases on exposure to infrared light.
Scandium Uses. Scandium is a transition metal element, which was discovered in 1879. It has since found various applications in different fields. Find out more about its uses, and also some interesting facts about this metal, in this article.candium-46, which is a radioactive isotope of the element, is used in oil refineries, where it plays the role of a tracing agent. The compound scandium triflate acts as a catalyst in organic chemistry. Scandium can also be used for the purpose of polishing glass.