Among other things, The World of Light and Sound introduces the student to how light reflects, refracts, and travels as well as how sound travels and is measured. 

24 hands-on lessons appropriate for grades K-8 at different mastery levels facilitating multi-level teaching
Lots of Science Library Books with information, pictures, and diagrams
Investigative Loop guides the student through each step of the lab activities with materials lists, questions, and data for students to record
3D Graphic Organizers provide a format for students of all levels to conceptualize, analyze, review, and apply the concepts of the lesson
Teacher Pages include vocabulary words, maps, assessments, and assignments