August 27, 2011
Mitzy Rodriguez, right, and Jazmin Duran work out their bottle-rocket design on a classroom dry erase board during the HYEES camp at Walla Walla University.
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Mitzy Rodriguez couldn't help laughing as the rocket she and her classmates had worked to build finally took to the air. In an empty field on the Fort Walla Walla grounds, a rocket made from a 2-liter bottle and filled with some water exploded from its ba