ISEN-ASTC-L is a service of the Association of Science-Technology Centers
Incorporated, a worldwide network of science museums and related institutions.
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We find using sand unspeakably evil here too, so we tend to use ground 
apricot pits as a sand substitute in dig spaces.  It looks and acts 
similarly to sand.  We don't use ground walnut shells for the allergy issue.

-- 
Emily Robertson
Museum of Science, Boston



Ian Simmons wrote:

>ISEN-ASTC-L is a service of the Association of Science-Technology Centers
>Incorporated, a worldwide network of science museums and related institutions.
>*****************************************************************************
>
>At Techniquest we've found indoor sand unspeakably evil - it has been a
>massive pain to clear up and has a habit of insinuating itself into every
>exhibit within reach, causing them all sorts of problems. It scratches
>polycarb, paint and pretty much anything else, and parents panic when
>toddlers eat it. The alternative of putting it outside is not practical with
>Welsh weather, and even if it was, there's the cat problem. I really liked
>Sausilito's gravel, though, it seemed to provide pretty much the same fun
>level without the grief.
>
>IAN SIMMONS
>
>
>  
>

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