SCIENCE CARNIVAL ON THE PARKWAY http://www.philasciencefestival.org/
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You've never experienced an outdoor carnival like this one! Our carnival features more than 175 exhibitors offering non-stop, family-friendly experiments, interactive activities, games, and a packed line-up of live entertainment. Enjoy making slime, meeting live zoo animals, checking out the inner-workings of robots, taking a tour of a helicopter, extracting DNA from a strawberry, testing a “crime scene” for forensic evidence, and so much more!