The students sitting on the steps of the Franklin Institute wondered what happens when several gallons of dish-soap solution are dumped into a trash can full of liquid nitrogen.
They didn't wonder long.
An explosion of bubbly, foamy suds sprayed the kids from Russell Byers Charter School and Cristo Rey Philadelphia High School, bestowing the kind of OMG moment that the fifth annual Philadelphia Science Festival aims to give all participants.
Thursday's news conference offered a sneak peek of the nine-day festival, set for April 24 to May 2. Hundreds of the region's parks, libraries, universities, museums, eateries, and pubs will join the institute to host more than 100 events, all designed to stoke interest in science and technology. Many events are free; tickets for the rest are on sale at www.philasciencefestival.org.
Click here to read more.