Engineering Adventures (EA) is a free, hands-on, project-based engineering curriculum designed for out-of-school time (OST) programs serving children in grades 3 to 5. The EA curriculum was developed by Engineering is Elementary® (EiE), a project of the National Center for Technological Literacy® at the Museum of Science, Boston. Each Engineering Adventures (EA) curriculum unit features a hands-on "engineering design challenge" based on real-world events that gives children the opportunity to apply and reinforce the science and engineering practices put forth in the Next Generation Science Standards. Every EA unit focuses on a different field of engineering and features 10-12 hours of activities with flexible scheduling options. EA units area available as FREE DOWNLOADS on the project website.