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Subject:	Re: oobleck run through
From:	Luke Donev <[log in to unmask]>
Reply To:	Informal Science Education Network <[log in to unmask]>
Date:	Fri, 15 Jul 2011 16:22:51 -0400
Content-Type:	text/plain
Parts/Attachments:	text/plain (1 lines)

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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Has anyone tried leaving a slow-speed agitator in the oobleck (like a paddle on a motor) to keep agitating it overnight and prevent it from settling out? Not sure if it's worth the effort, but it might let you re-use batches over a weekend.

-----Original Message-----

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We made a test batch in a large aquarium tank about 8" deep and left it overnight to see if we could re-use it the next day. The issue wasn't evaporation, as much as separation. By morning, the Oobleck had separated dramatically, with about 1" of just water on top and the cornstarch packed densely below. Re-mixing it proved impossible.

--Jeff--

Jeff Rosenblatt

Director, Science City

Union Station Kansas City, Inc.

30 W. Pershing Rd. Suite 850

Kansas City, MO 64108

Office: 816-460-2218

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