This case study provides a summary and history on the discovery of glass. In this lesson, students learn about ordinary glass and two types of glass—laminated and tempered—that have unique safety characteristics. After reading about the accidental discovery of safety glass in a chemistry laboratory, students will observe what happens when the different types of glass break. They will compare and contrast the breaking patterns and will brainstorm applications for different glass products. This case can be used as a way to integrate engineering into a lesson on the subatomic structure of crystalline and amorphous solids, properties of glass, or even projectiles and collisions. A materials list, teacher notes, teacher background information, safety notes, standards, assessment, resources, and references are provided. This book selection also includes the Table of Contents, About the Authors, Acknowledgments, Introduction, Appendix, Image Credits, and Index.