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by Katrina teacher: J Harington


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Science Expo. Last Tuesday some scientists came to school, in the hall. One thing they did was, they put a balloon in liquid nitrogen and it shrunk. When it got hotter, it grew back again. And they put liquid nitrogen in a bottle and put the lid on. Then it blasted in the air.

Article posted June 20, 2012 at 03:26 AM • comment • Reads 73 • see all articles

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