Friday, July 11, 2008

Day Nine

Polymer Day! Polymer chemistry is a HUGE business. We could spend weeks just looking at polymers... but we won't. We will just spend one day making and testing different polymers. First we have to learn that a polymer is a long chain of molecules. When polymers are combined with a "linking agent" the long chains get "linked" together and become stiff, rubbery, or really really viscous! We made three different polymers today and then tested them for things like "slimyness", "bouncyness" and "viscosity". We also subjected them to the "poke test" as well as the "hang time test". Most of all, we just had fun making our polymer "boogers" look like they were coming out of our noses!

Follow this link to find the recipies and more fun about polymers...

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