[Rockhounds] Geology demostrations for preschools

[Kreigh Tomaszewski]

Brett,

America Science and Surplus often has 2 inch geodes for a buck each. 
SCIPLUS.com

You might consider making wallboard. Crush some gypsum. Cook it in a 
frying pan to drive off the water and make plaster. Mix with water to 
make wet plaster, smear it on a sheet of cardboard, put another sheet 
on top. Let dry (maybe speed it up with a blow dryer).

Kreigh




On Monday, Feb 16, 2009, at 14:54 America/Detroit, Brett Whitenack 
wrote:

> I work in a small museum and every year we have what we call the 
> Preschool Jamboree. We invite all of the preschools in town to bring 
> their students in and give a short presentation on some topic that 
> coincides with a feature exhibit in the museum.
>  
> This year we are featuring Wonders of the Earth. I want to do some 
> short demonstrations that deal with earth science but are geared 
> towards 3-4 year olds. I have some fluorescent minerals to show, 
> pumice-the rock that floats, and we will break a small geode to give 
> to the class.
>  
> Do the members of the list have any other suggestions as to any 
> demonstrations that I could use? Also, is there anyone out there who 
> would have a cheap source for small (1 1/2 - 2 inch diameter) geodes? 
> Any suggestions would be most appreciated.
>  
> While I have your attention I want to say what a great list this is. I 
> have learned much and enjoy reading all the topics the list members 
> present with each post.
>  
> Thank you
>  
> Brett W.
>
> Brett Whitenack
> Curator
> McPherson Museum
> 1130 East Euclid
> McPherson, KS 67460
> 620-241-8464
> http://www.mcphersonmuseum.com
>
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