Radon is a colorless, odorless, tasteless, and chemically inert radioactive gas. It is formed by the natural radioactive decay of uranium in rock, soil, and water. Naturally existing, low levels of uranium occur widely in Earth's crust. It can be found in all 50 states. Unless you test for it, there is no way of telling how much is present.
Science Fair Project
The National Radon Science Fair Project provides ideas for science fair projects that will explain the science, health risks, exposure routes, mitigation and other aspects of radon. Geared towards teachers and middle and high school students, it provides helpful images, diagrams, and resources about radon and what can be done to prevent exposure to radon.
National Radon Program Services at Kansas State University are funded by the U.S. Environmental Protection Agency under Cooperative Agreement XA-83312602.