When the flowers are frozen in liquid nitrogen, they become brittle and shatter like glass!
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Brownian motion is shown using the Molecular Motion Demonstrator, a plastic chip, and small metal beads.
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Boiling liquid nitrogen is used to blow up (in both senses!) a balloon!
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A balloon will pop when heated, but a balloon with some water in it will not.
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Changing the volume available for "molecules" has an effect on how often the molecules hit the walls of their container.
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