Obama to host second White House science fair Tuesday

Obama has frequently compared inviting top students to the White House to the hosting of championship professional and college sports teams. He will also tout the administration's efforts to boost student performance in those subjects.

"If you win the NCAA championship, you come to the White House. Well, if you're a young person and you produce the best experiment or design, the best hardware or software, you ought to be recognized for that achievement, too,” Obama said in 2009.

The president also made a surprise appearance at the New York City Science Fair last March.