Authorities were called to Owasso High School’s East Campus on Monday morning after a student brought a “radioactive rock” to school, prompting a response from local law enforcement and hazardous ...

Introduction to Radioactivity Lesson Overview In this lesson, students will investigate the nature of radioactivity and the effect of both distance and shielding materials on different radioactive ...

JACKSONVILLE, Fla. — What looks like mini mountains in Florida, are actually huge mounds of radioactive material. They are made of phosphogypsum, a byproduct of phosphate fertilizer manufacturing. Two ...

While multiple layers of protection surround the radioactive material, and levels of radiation outside the camera are not dangerous, it should be handled with care, state officials said. By April ...