Technology has great power to transform people’s lives. This series provides an engaging overview of the history and science behind several amazing innovations, highlighting the changes each one created and the new ideas and applications researchers are currently working on. Each book features informative sidebars, a How It Works special feature, a table of contents, a reading comprehension quiz, a glossary, additional resources, and an index. This Focus Readers series is at the Navigator level, aligned to reading levels of grades 3-5 and interest levels of grades 5-7.