Watch President Obama Fire a Marshmallow Canon at the White House Science Fair [PHOTOS]

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  • White House Science Fair
    U.S. President Barack Obama pumps air pressure into Extreme Marshmallow Cannon designed by Joey Hudy (L) of Phoenix, Arizona, before firing a marshmallow across the State Dining Room of the White House during the second White House Science Fair in Washington February 7, 2012. The fair celebrates the achievements of student winners of a broad range of science, technology, engineering and math (STEM) competitions from across the country. Reuters
  • White House Science Fair
    U.S. President Barack Obama reacts as Joey Hudy of Phoenix, Arizona launches a marshmallow from his Extreme Marshmallow Cannon in the State Dining Room of the White House during the second White House Science Fair in Washington February 7, 2012. Reuters
  • White House Science Fair
    Samantha Garvey, 18, of Long Island, New York, waits to show U.S. President Barack Obama her science project during the second White House Science Fair in Washington February 7, 2012. The teenager and her her family were living in a homeless shelter when she was named a semi-finalist in the Intel Science Search. Reuters
  • White House Science Fair
    U.S. President Barack Obama speaks as he hosts the second White House Science Fair celebrating the student winners of a broad range of science, technology, engineering and math (STEM) competitions from across the country in Washington February 7, 2012. Reuters
  • White House Science Fair
    U.S. President Barack Obama reacts as Joey Hudy of Phoenix, Arizona, launches a marshmallow from his Extreme Marshmallow Cannon in the State Dining Room of the White House during the second White House Science Fair in Washington February 7, 2012. The fair celebrates the achievements of student winners of a broad range of science, technology, engineering and math (STEM) competitions from across the country. Reuters
  • White House Science Fair
    U.S. President Barack Obama shares a group hug with Team America Rocketry Challenge students from Presidio, Texas, during the second White House Science Fair in Washington February 7, 2012. The fair celebrates the achievements of student winners of a broad range of science, technology, engineering and math (STEM) competitions from across the country. At center is 7th grader Gwynelle Condino. Reuters
  • White House Science Fair
    U.S. President Barack Obama reacts as Joey Hudy of Phoenix, Arizona, launches a marshmallow from his Extreme Marshmallow Cannon in the State Dining Room of the White House during the second White House Science Fair in Washington February 7, 2012. Reuters
  • White House Science Fair
    Samantha Garvey, 18, of Long Island, New York, waits show U.S. President Barack Obama her science project during the second White House Science Fair in Washington February 7, 2012. The teenager and her family were living in a homeless shelter when she was named a semi-finalist in the Intel Science Search. Reuters
  • White House Science Fair
    U.S. President Barack Obama reacts as Joey Hudy of Phoenix, Arizona, launches a marshmallow from his Extreme Marshmallow Cannon in the State Dining Room of the White House during the second White House Science Fair in Washington February 7, 2012. Reuters
  • White House Science Fair
    Samantha Garvey, 18, of Long Island, New York, waits to show U.S. President Barack Obama her science project during the second White House Science Fair in Washington February 7, 2012. The teenager and her family were living in a homeless shelter when she was named a semi-finalist in the Intel Science Search. Reuters
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President Obama attended the White House science fair Feb. 7 and even tried out some of the gadgets including a homemade marshmallow canon he then took to firing. Obama was demonstrably amused (who wouldn't be!) as he launched marshmallows with the Extreme Marshmallow Cannon built by Joey Hudy of Phoenix, Arizona. The fair was centered around over 100 student projects from around the country, and included robots and a portable disaster relief shelter.

It's not every day you have robots running all over your house, Obama said of the science fair.

I'm trying to figure out how you got through the metal detectors.

Obama called for millions in new funds for improving science and math education and added he would use his upcoming budget proposal to support science and math teacher prep programs. He said the students from the fair were an inspiration.

You're getting America in shape to win the future.

Start the slideshow to see the President in action at the science fair. Tell us in the comments which is your favorite photo.

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