One hundred students from 30 different states took over the White House Tuesday to participate in the fourth annual White House Science Fair.
This year had a special focus on girls involved in science, technology, and engineering. Girl Scout Troop 2612 showed President Obama what they were made of by presenting a “Flood Proof Bridge,” designed with disaster relief in mind.
Peyton Robertson, 12, also looked to flood prevention by creating a sandless sandbag.
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