Guest USA Science Posted April 16, 2012 Report Share Posted April 16, 2012 What is the universe made of? Why did dinosaurs go extinct? Find out at the 2nd USA Science & Engineering Festival Expo hosted by Lockheed Martin! More than 2000 fun, hands-on activities; over 100 stage shows and author talks. A free event! www.usasciencefestival.org Sat, April 28, 2012, 10am-6pm Sun, April 29, 2012, 10am-4pm Location: 801 Mount Vernon Place, NW, Washington, Virginia 20001 Quote Link to comment Share on other sites More sharing options...
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