Tunnels! With 25 Science Projects for Kids

Illustrated by Mike Crosier. In Tunnels! With 25 Science Projects for Kids, readers explore the fascinating world of passageways beneath the ground, dug deep within the earth through soil and rock. But why dig through rock to make a tunnel? Tunnels give people a way to travel and transport goods from one place to another. Readers learn about the engineering and construction that goes into every tunnel made, whether it’s being dug under roads, under oceans, or under cities. Links to primary sources offer a unique, interactive learning experience, while fun facts, engaging illustrations, timeline, glossary, and lots of resources keep kids wanting to learn more about the engineering design process.