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I'm doing a dinosaur co-op and I want the kids to be able to excavate some dinosaur bones. I was hoping to make some shoe box (or smaller) sized bricks with plastic dinosaur bones burried in them. I'd like it to have a consistency of packed earth like a "real" dig site might.

I recall reading about mixing sand, plaster of paris and some flour/baking soda and water...I think... but I can't find it and I can't remember the exact proportions.

Can anyone help? Has anyone tried this kind of thing?

Thanks in advance
Karen
 

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We just did this for dd1's birthday. Here's the recipe we used:

http://www.diynetwork.com/diy/kc_oth...270862,00.html

We made three big ones (multiplying the recipe) of varying hardness. We used plastic dinosaur skeletons, small plastic dinos and polished stones from Oriental Trading. Got putty knives and safety goggles at the Dollar Store.

We also froze dino items in ice using jello molds and gave the kids small cups of warm water.

We made plaster bones from "beach bones" molds.

The first two things were *huge* hits and the kids were running to the library this week to get books on dinos. The last activity...not as much interest.

Here's a recipe we didn't end up using:

http://jas.familyfun.go.com/arts-and...&craftid=10183

Have fun!
 
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