Tinker and test your way through a score of displays provided by local engineering firms and find the fun in what engineers do! Local high school teams will show off their robotics skills. Engage your brain as you make and take and explore the many ways engineering happens in the Rock River Valley! Included with Discovery Center admission: $9/person; free to Members and children ages one and younger. Sponsored by the Rock River chapter of the Illinois Society of Professional Engineers; TAC Rockford and Advanced Machine and Engineering Co.