We all need help sometimes. Someone may need help listening. The police need help solving a crime. Even the Earth needs help! Engineers solve problems to help society function better. In this book, young readers will learn about some of the amazing designs and inventions created to help people in every day society. The Mi Biblioteca de Ingenieria/My Engineering Library series gives an introduction to a variety of engineering and design topics for beginning readers based on NGSS. From learning about how engineers design rockets to how they build structures underwater, these informative books present complicated information in easy-to-understand language with kid-friendly examples and diagrams. Each book includes a glossary, index, and an engineering design activity to support further comprehension.