Tejia, a chemistry club member at Southeast Missouri State University, demonstrates just how cold liquid nitrogen is to a group of children and their parents who were visitors to campus for Halloween Science Night. Tejia has frozen a flower in the liquid nitrogen and will now smash it on the counter top. The fragments of the flower will eventually warm to room temperature and return to their former softness. Tejia spent Friday evening, October 30, along with about 100 other volunteers from the chemistry, biology, and physics departments doing demonstrations and running science activities for about 150 kids from the area.
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