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Wednesday, March 10, 2010

Diffusion: Perfume in the Room


Place an open container of perfume (or other scented substance, such as vanilla) in a corner of the room. Have students raise their hand when they first smell the scent. Or, they could quietly note the time at which they first notice it and you can analyze the data later. You should find that students nearest the container are the first time notice it and it spreads outward from there.

To keep the results as honest as possible, don’t tell students where you’ve placed the container or what scent you’ve used.

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