Building Museum will hosting the DiscoverE Family Day this Saturday (2/16) from 10-4:30. The event is geared toward elementary and middle school students but the event is great fun and older kids that really like engineering would enjoy all the hands-on engineering activities and talking with engineers and college students studying engineering.
In the past they've had astronauts on hand to speak with, NASCAR cars, celebrity engineers and scientists (eg: Bill Nye) etc. It's a lot of fun.... tell your students!
More info here: http://www.engineeringfamilyday.org/