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The New York Hall of Science is preparing a traveling exhibition about 
evolution. We are considering a dinosaur dig exhibit and I'd appreciate 
some information.

        If you have a dinosaur dig activity are you using a wax-sand 
matrix? And if so, do you find it difficult easy or just another 
maintenance routine to prepare and replace the wax-sand mixture? 

        If you have a dig are you using rubber pellets or some other 
matrix than wax-sand and is that satisfactory to older children say 7 yrs 
+? Did you decide not to use the wax-sand mixture for any particular 
reason?

I appreciate the information and it will help us make a decision. 

Would you please pass this to the appropriate colleague?

Thanks,

Martin


Martin Weiss, PhD
Science Interpretation Consultant
New York Hall of Science

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