In this lesson, students will investigate the nature of radioactivity and the effect of both distance and shielding materials on different radioactive sources using a Geiger-Muller tube with a counter ...

The type of radioactivity that I often speak about with Alaska residents comes from a naturally occurring substance, radon gas. And though radon’s alpha radiation comes from buried uranium, the ...

What is KI and how can it help during a radiation emergency? Read on to learn more about KI, including how it may protect the thyroid from radiation.