Subject: | |
From: | |
Reply To: | |
Date: | Thu, 29 May 2008 11:30:11 -0400 |
Content-Type: | text/plain |
Parts/Attachments: |
|
|
ISEN-ASTC-L is a service of the Association of Science-Technology Centers
Incorporated, a worldwide network of science museums and related institutions.
*****************************************************************************
Hi all -
I'm wondering if anyone has ever found an effective method of "un-coloring"
water in order to re-color it a few minutes later. We'd like to demonstrate
the swirls of clouds in a hurricane with a quick demo of water in a bowl
that's stirred and then we add a couple drops of food color - the color
moves out in bands like a hurricane's clouds. What we'd like to avoid is
throwing out each bowl of water so that we can do this more as a cart-based
activity (repeated multiple times in an hour), rather than a one-at-a-time
demo.
We're thinking diluted bleach, but would like to avoid it if possible.
Other thoughts on what we could use to visualize the bands (small particles
that could be filtered, etc.) are appreciated as well.
Thanks,
Katie
------
Kathryn Stofer
TerraLink Exhibit Manager
Maryland Science Center
601 Light Street
Baltimore, Maryland 21230
p 410.545.5976
f 410.545.5974
http://www.marylandsciencecenter.org <http://www.marylandsciencecenter.org>
Join us for BODYWORLDS 2, now through September 1!
***********************************************************************
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.
The ISEN-ASTC-L email list is powered by LISTSERVR software from L-Soft. To learn more, visit
http://www.lsoft.com/LISTSERV-powered.html.
To remove your e-mail address from the ISEN-ASTC-L list, send the
message SIGNOFF ISEN-ASTC-L in the BODY of a message to
[log in to unmask]
|
|
|