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Hi Kathy-

We did one that was approx 3 ft x 10 ft x 6 in and we had to mix it morning
of the event. It is really tough to mix in more cornstarch or water once it
has set up. We used ours over two days and each morning mixed a new batch.

Maybe you could lay a wet blanket over the top overnight to stop the drying?


Alice

On Fri, Jul 15, 2011 at 1:08 PM, Fournier, Kathy <[log in to unmask]>wrote:

> 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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> *****************************************************************************
>
> So another question regarding our oobleck walk.....how well will that large
> of amount of oobleck stay if we make it the night before our event? I am
> assuming that if dried out at all we could just add some water to get it
> back to right consistency. Anyone have experience with this?
>
> Kathy Fournier
> Associate Vice President of Education
> McWane Science Center
> 200 19th Street North
> Birmingham, AL 35203
> 205-714-8254
> [log in to unmask]
>
>
>
>
>
>
> -----Original Message-----
> From: Informal Science Education Network [mailto:
> [log in to unmask]] On Behalf Of Jonah Cohen
> Sent: Wednesday, July 13, 2011 11:45 AM
> To: [log in to unmask]
> Subject: Re: oobleck run through
>
> ISEN-ASTC-L is a service of the Association of Science-Technology Centers
> Incorporated, a worldwide network of science museums and related
> institutions.
>
> *****************************************************************************
>
> Sounds awesome, Joe! But, uh.... how did you clean up/dispose of all
> that obbleck?
>
> Jonah Cohen
> Outreach & Public Programs Manager
> The Children's Museum
>
> "Discontent is the first necessity of progress."
>        -Thomas Edison
>
> -----Original Message-----
>
> Hello Kathy,
>
> We did an oobleck run last year with a trough that was 1 foot deep and 8
> feet in diameter. The distance across was about right for the folks who
> moved quickly. For those who hesitated, the large diameter meant that
> our rescue crew had to step in quickly or risk losing people. Don't do
> more than 1foot deep. Don't.
>
> The math yields ~50 cubic feet, or a bit less than 2 cubic yards, which
> we achieved with 2000lbs--40 bags--of cornstarch.
>
> Joe
> Joe Hastings
> Executive Director
> Don Harrington Discovery Center
> [log in to unmask]
> [log in to unmask]
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-- 
Alice Stevenson
Senior Manager of Family Programs and Early Childhood Learning
New York Hall of Science
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