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The operative buzz word for fast and crystallization is nucleation crystallization.

see: http://www.sciencecompany.com/sci-exper/crystal_exp6.htm

This will also lead to some very tangible results regarding heat of solution. 
Etc.  This is a cool experiment that's been around for a while, and it isn't even 
dangerous.

Reagan Cole, PhD
Exhibits Engineer
North Carolina Museum of Life and Science
433 W. Murray Ave.
Durham, NC 27704
Voice: (919) 220-5429 Ext. 371
Fax: (919) 220 9639
Web: www.ncmls.org
Email: [log in to unmask]

-----Original Message-----
>From: Emily Schwartz <[log in to unmask]>
>Sent: Aug 16, 2007 9:50 AM
>To: [log in to unmask]
>Subject: Quick Crystals
>
>ISEN-ASTC-L is a service of the Association of Science-Technology Centers
>Incorporated, a worldwide network of science museums and related institutions.
>*****************************************************************************
>
>Hello!
>
> 
>
>I am looking for quick forming crystal demonstrations to present to a group
>of 5th/6th graders in a 2 hour class. Does anyone have any ideas?
>
> 
>
>Thanks!
>
>Emily Kanipe
>
>
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>For information about the Association of Science-Technology Centers and the Informal Science Education Network please visit www.astc.org.
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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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