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Laura,
        We used a setup to make dry ice bubbles so that when you popped
them, the smoke escaped.  It was a good WOW factor for our audiences.

        It was essentially a PVC pipe caped on one end and the top had a
screw on lid with a medium sized tube coming out of it.  I believe we sealed
it with clear calking.  We put hot water in the tube and a chunk of dry ice.
Then sealed it and dipped it into a bubble solution.  It was cool.  When the
water gets too cold it slowed way down and we just added more hot water.

Have fun!

Lou Papai 
Public Programs Manager 
Science Central 
1950 N. Clinton St. 
Fort Wayne, IN  46805 
(260) 424-2400, ext. 442 
[log in to unmask] 
www.sciencecentral.org
Latitude: 41° 05' 31"
Longitude: 85° 08' 22.9"

-----Original Message-----
From: Laura Milroy [mailto:[log in to unmask]]
Sent: Wednesday, September 15, 2004 4:22 PM
To: [log in to unmask]
Subject: Bubble Demo


ISEN-ASTC-L is a service of the Association of Science-Technology Centers
Incorporated, a worldwide network of science museums and related
institutions.
****************************************************************************
*

I am in the process of designing a 40 - 50 minute bubble demo for all ages
to be presented on the weekends.  I have the basic framework done with the
science background, but am looking for the "WOW" factor.

Does anyone have any experience doing demos on this topic, and if so are
willing to share their suggestions on what they felt worked the best, or
didn't work as well as they had intended.

Any information you may have would be greatly appreciated.

Laura Milroy
Public Programs Assistant, Odyssium
[log in to unmask]

A candle loses nothing by lighting another candle.
- Father James Keller


Laura Milroy
Public Programs Assistant, Odyssium
[log in to unmask]

A candle loses nothing by lighting another candle.
- Father James Keller




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