Sara Volz, 17, from Colorado Springs, Colo., joined the quest for practical alternatives to petroleum-based fuels in the seventh grade. Now a high school senior, she may have found an answer in the oily pond scum growing under her bed.
Sara Volz, 17, from Colorado Springs, Colo., joined the quest for practical alternatives to petroleum-based fuels in the seventh grade. Now a high school senior, she may have found an answer in the oily pond scum growing under her bed.
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