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This Sub-Zero Science - Julie Gintzler instructional video also includes:
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Spangler invites a teacher in for this segment. She has developed some amazing demonstrations which use liquid nitrogen for elementary schoolers. She drops inflated balloons into a bowl of liquid nitrogen and the results are quite dramatic. Not only do the balloons shrink in size because the air molecules inside are shrinking, but some of the air changes states and becomes a liquid!
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