Well, it is a polymer! We are currently learning all about the physical side of science, and today we saw how chemicals can be helpful in our lives. After discussing antibiotics, vitamins, and fertilizers, we moved into the world of polymers. So that your fifth grader is not smarter than you are here is a "cheat sheet". Polymers are made up of many many molecules all strung together to form really long chains (and sometimes more complicated structures, too).
My science students had a great time playing with their polymer slime and watching it take on the characteristics of a solid and a liquid. Some common polymers are rubber, silicone, and everyone's favorite polyester!
Here are some great links to polymer fun: www.sciencebob.com and http://pslc.ws/macrog/kidsmac/wiap.htm.
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