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 used chicken grit #2, a medium sized grit that can be easily blocked
with screens from getting into the pump. It still showed landforms and
was a great color. We buy it at feed stores. Has anyone had trouble
keeping diatomaceous earth out of pumps?
Cory Samia
Water Resources Education Center
Vancouver, Washington
360 487 7112
-----Original Message-----
From: Informal Science Education Network
[mailto:[log in to unmask]] On Behalf Of Donna Claiborne
Sent: Friday, October 17, 2008 12:54 PM
To: [log in to unmask]
Subject: Re: Stream Tables
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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*****
Thank you. I'll look into it.
Donna
On 10/17/08 3:32 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.
************************************************************************
*****
I have used diatomaceous earth in the past and really liked the results.
Kathy Fournier
Director of Science Education
McWane Science Center
200 19th Street North
Birmingham, AL 35209
205-714-8254
[log in to unmask]
-----Original Message-----
From: Informal Science Education Network
[mailto:[log in to unmask]] On Behalf Of Donna Claiborne
Sent: Friday, October 17, 2008 2:18 PM
To: [log in to unmask]
Subject: Stream Tables
ISEN-ASTC-L is a service of the Association of Science-Technology
Centers
Incorporated, a worldwide network of science museums and related
institutions.
************************************************************************
*****
Hello,
We are working on a new stream table and are wondering what medium you
found to be most useful; walnut shells, sand, or something? What are the
advantages and disadvantages of each.
What method do you use to resurface /re-level the material on the table?
Do you have an automatic system that flushes the table ever so often or
are you not concerned with leveling it?
Thank you,
Donna
-
Donna Claiborne
Exhibit Project Manager
[log in to unmask]
Franklin Institute
222 N. 20th Street
Philadelphia, PA 19103
215.448.2370 (P)
215.448. 1188 (F)
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Donna Claiborne
Exhibit Project Manager
[log in to unmask]
Franklin Institute
222 N. 20th Street
Philadelphia, PA 19103
215.448.2370 (P)
215.448. 1188 (F)
***********************************************************************
For information about the Association of Science-Technology Centers and
the Informal Science Education Network please visit www.astc.org.
Check out the latest case studies and reviews on ExhibitFiles at
www.exhibitfiles.org.
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For information about the Association of Science-Technology Centers and the Informal Science Education Network please visit www.astc.org.
Check out the latest case studies and reviews on ExhibitFiles at www.exhibitfiles.org.
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