Video of “Molecular diffusion is a very slow process”

Here are some videos of the “Molecular diffusion is a very slow process” demonstration. The full videos are linked from the captions

Adding the dyed salt water to the base of the tank


Time lapse of 2 hours 50 minutes of diffusion


Mixing the tank by hand to show that there enough dye to color the whole tank


An index of all the demonstrations posted on this blog can be found here. Don’t forget to follow @nbkaye on twitter for updates to this blog. If you have a demonstration that you use in class that you would like to share on this blog please email me ( I also welcome comments (through the comments section or via email) on improving the demonstrations.


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