Virginia Loh-Hagan

Bridges Virginia Loh-Hagan

"The 21st Century Junior Library Extraordinary Engineering series explains how important feats of engineering are accomplished. Bridges examines the engineering concepts that make these critical structures possible. Sidebars encourage readers to engage in the material by asking deeper questions or conducting individual research. An activity, full color photos, a glossary, and a listing of additional resources all enhance the learning experience"-- Provided by publisher.