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Tom Kuntzleman's picture

Hydrophobic vs. Hydrophilic, Polar vs. Non-polar

Mon, 05/13/2013 - 20:47 -- Tom Kuntzleman

Wow! A very neat experiment, called “Hydroglyphics”, published by Kim, Alvarenga, Aizenberg, and Sleeper in the Journal of Chemical Education allows you to transform a common plastic Petri dish into a unique teaching tool to demonstrate the difference between hydrophobic and hydrophilic surfaces. Check it out in the video.

Tom Kuntzleman's picture

Fun with M & M's

Sat, 05/04/2013 - 06:35 -- Tom Kuntzleman

I came across a simple, yet interesting experiment that was first described by Elizabeth Sumner Walter in 2001. She merely had students pour water into a dish containing some Gobstoppers candies. I showed this experiment to some of my college chemistry students while they were working on a different laboratory experiment.

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