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Hi Chad,
The staff came up with a really simple one to show how friction can
cause heat.  The just make everyone in the audience clap their hands
together and rub all at once.  It gets the point across and is a cute
full audience bit.
Kerry

Chad Johnson wrote:

>ISEN-ASTC-L is a service of the Association of Science-Technology Centers
>Incorporated, a worldwide network of science museums and related institutions.
>*****************************************************************************
>
>I hope everyone is having a good Monday morning.  We are adding a new demonstration to our line up this month on friction.  We will be using a hovercraft and a MagLev track to help teach the concept of friction in a 30 minute show.  I am just wondering if there are any other really cool large group type demonstrations that have been used elsewhere.
>
>Thanks
>Chad Johnson
>Experiential Educator
>The Edgerton Explorit Center
>http://www.edgerton.org
>1.877.694.4032
>
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