This high school physical science lesson has the following learning goals for students: design and conduct an investigation to determine the speed of sound in air; interpret their experimental results; and explain possible reasons for discrepancies (if any occur) between the class results and the known speed of sound. A materials list, teacher background information, assessments, outcomes, and extensions are provided. This book selection includes the Table of Contents, Preface, Acknowledgments, About the Authors, and Index.