Explores the science behind modern technology: TV, radio, Internet, cell phones/mobile devices, Earth to space communication, satellites, and GPS. Expands students' understanding of light and sound as mechanisms of energy transfer and transfer of information between objects that are not in contact. Covers scientists and discoveries that led to modern technology.

Table of Contents

• Before & After Reading Activities: Level: Y
• Early Communication
• What Are Waves?
• Electromagnetic Radiation
• Technology and Communication
• Modern Communication
• Timeline
• Glossary
• Show What You Know
• Websites to Visit
• About the Author