Nat'l Science and Engineering Festival Comes to DC - NBC4 Washington

Nat'l Science and Engineering Festival Comes to DC

The Washington Convention Center will host the largest science festival in the nation this weekend. The Convention Center will be packed with all kinds of neat gadgets and experiments for the 4th U.S.A. Science and Engineering Festival. News4's Molette Green got a sneak peek of this weekend's festivities.

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