Need to get to the other side of a city or lake? Sometimes a bridge is the way to go, and sometimes a tunnel is best!

In Tunnels! With 25 Science Projects for Kids, kids ages 7 to 10 explore the deep topic of tunnels-the engineering that goes into designing them, the way engineers and construction teams work together to build them, and the materials used to ensure the tunnels don’t cave in! Readers learn all about tunnels while doing student-driven STEAM activities that reinforce learning and allow for plenty of discovery about the engineering design process, simple machines, and the laws of physics!