Hands-on demonstration of properties of clay?

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Offline pieguana

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Hands-on demonstration of properties of clay?
« on: 16/01/2014 16:10:56 »
My Girl Scout troop of 8- and 9-year-olds is working on their "Potter" badge-- as in clay, not Harry. We've worked with polymer clay and will also work with mineral clay. I'm looking for a good, hands-on demonstration of the properties of clay-- perhaps something about plastic deformation. We made "slime" (aka "flubber"), from glue and borax already. My girls are very science-oriented and love these sorts of activities, so I'm hoping to bring some materials science to what is currently a very non-science project.

I welcome your suggestions!

Thanks, Jen


Offline CliffordK

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Re: Hands-on demonstration of properties of clay?
« Reply #1 on: 16/01/2014 23:56:03 »
I've seen soil with grey clay that is almost pure enough to make stuff out of, although I've heard that impurities cause problems with firing objects.  Perhaps there would be a good place around your home town to dig some.

Here is a nice video about making one's own clay, along with some notes about plasticity of the clay, and what to select.


As well as a description of making one's own clay.