Explains how sound and light waves work, including such concepts as transverse waves, longitudinal waves, and electromagnetic radiation. --

Much of human perception is thanks to the transmission of light and sound, from reading a book, to watching television, to walking to school. Explaining deep but foundational topics through modeling, this book helps readers visualize and represent the properties of light and sound, while contextualizing their practical uses. As students experiment with light and sound, they will master key concepts covered in the NextGen Science Standards.

Science, engineering, and technology permeate nearly every facet of modern life and hold the key to solving many of humanity's most pressing current and future challenges. The United States' position in the global economy is declining, in part because U.S. workers lack fundamental knowledge in these fields. To address the critical issues of U.S. competitiveness and to better prepare the workforce, A Framework for K-12 Science Education proposes a new approach to K-12 science education that will capture students' interest and provide them with the necessary foundational knowledge in the field. A Framework for K-12 Science Education outlines a broad set of expectations for students in science and engineering in grades K-12. These expectations will inform the development of new standards for K-12 science education and, subsequently, revisions to curriculum, instruction, assessment, and professional development for educators. This book identifies three dimensions that convey the core ideas and practices around which science and engineering education in these grades should be built. These three dimensions are: crosscutting concepts that unify the study of science through their common application across science and engineering; scientific and engineering practices; and disciplinary core ideas in the physical sciences, life sciences, and earth and space sciences and for engineering, technology, and the applications of science. The overarching goal is for all high school graduates to have sufficient knowledge of science and engineering to engage in public discussions on science-related issues, be careful consumers of scientific and technical information, and enter the careers of their choice. A Framework for K-12 Science Education is the first step in a process that can inform state-level decisions and achieve a research-grounded basis for improving science instruction and learning across the country. The book will guide standards developers, teachers, curriculum designers, assessment developers, state and district science administrators, and educators who teach science in informal environments.

Presents an explaination of how sound-waves work.

What do CDs, lamps, lasers, and microwave ovens all have in common? They all use the power of light and optics! From ancient times when scientists puzzled over the effects of the Sun on Earth to today, where scientists and engineers use lasers to make precise cuts in metal, people have been fascinated by light and optics. In this book, you’ll delve into this incredible subject and learn how light can bend and bounce. You’ll understand how scientists use light to send data from one side of the world to the other. And, you’ll have fun discovering new things to do with flashlights and mirrors. These experiments and activities can be used as a starting point for science fair projects, or you can do them just for fun. Either way, you’ll find out a lot about the properties of light!