Curious Kids[1] is a series for children of all ages. If you have a question you’d like an expert to answer, send it to This email address is being protected from spambots. You need JavaScript enabled to view it.[2].“What is radium and why is it dangerous?” – Aurora, 10, Laredo, Texas The element radium can be found in extremely tiny amounts in the Earth’s crust and oceans, and in
Curious Kids[1] is a series for children of all ages. If you have a question you’d like an expert to answer, send it to...