Readers will have a blast learning about Tunnels. From mining tunnels to the Channel Tunnel, this book explores how they are built, how they are used, and the engineer’s job to build and plan for them. Bright, full-page photos fill the pages of this fun title, while easy-to-read text introduces readers to key STEM concepts. Aligned to Common Core Standards and correlated to state standards. Sandcastle is an imprint of Abdo Publishing, a division of ABDO.