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a quick google of 'center of gravity tricks' turned up several fun  
and easy activiites

here's a good one on wikipedia...
http://tinyurl.com/44p9yu

actually finding it for a 2d shape is here

http://tinyurl.com/qomaw

let us know what else you find out..

	


On Sep 23, 2008, at 3:28 PM, Mary Catherine Campbell wrote:

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> I need help in teaching center of gravity / balance concepts to
> elementary students.  I'm looking for ways to demonstrate finding the
> CoG as well as ways that students can display the concept.  Any  
> activity
> ideas or background information would be greatly appreciated.
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> Mary Catherine Campbell
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For information about the Association of Science-Technology Centers and the Informal Science Education Network please visit www.astc.org.

Check out the latest case studies and reviews on ExhibitFiles at www.exhibitfiles.org.

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