When most people hear the word radiation, their mind jumps straight to nuclear disasters, such as at Chernobyl or Fukushima. But radiation is everywhere. In fact, right now, as you read this, you are ...

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 ...

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to CuriousKidsUS@theconversation.com. “What is radium and why is it dangerous?” – ...