Grades: 6-12; Subject Areas: Science. (2001) Explores the nature of light, focusing on wave theory and particle theory and investigates various modes of light production. Discusses different frequencies along the electromagnetic spectrum, including radio waves, infrared rays, the visible spectrum, ultraviolet rays, x-rays, and gamma rays. Includes a ten-question video quiz. For the teacher's guide go to: https://drive.google.com/folderview?id=0B9ZT7PYcIjLfQnBhVHMwYXdiNlU&usp=sharing