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Cola fountains: a nucleation spectacular

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What happens when you drop Mentos candy into a bottle of cola? Surface area, candy glaze, carbon dioxide, and a small amount of time all make a difference.

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What is a nucleation site?

a

A place where gas is exchanged under water

b

A place where a carbon dioxide bubble can form and escape

c

The site at which gas turns into water

d

The site at which water vapor turns into a solid

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Lesson Plan created by David Goodrich