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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Thanks for all the suggestions!

I know one of the things I was looking for was "easy to obtain, inexpensive"
so that really eliminated us fabricating a nice acrylic tank.  But as luck
would have it, we had a broken, irreparable exhibit in the shop Saturday
morning whose main body was a 24" diameter acrylic tube!  A few
modifications later, and now we have a nice dry ice tank that stands on its
own, is tall enough so little hands can't reach in and grab the dry ice,
sturdy and has clear visibility!  Such is life in the industry!

Dante

PS--Oh, and I still have the glass aquarium on stand-by!

-----Original Message-----
From: Informal Science Education Network
[mailto:[log in to unmask]]On Behalf Of Fisher, Martin
Sent: Monday, March 07, 2005 8:36 AM
To: [log in to unmask]
Subject: Dry ice tank


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

Actually, I like the small glass aquarium. I've used plexiglass and plastic
tanks for these CO2 experiments in the past, but always preferred the common
pet-store variety aquarium for all of the reasons you mentioned - cheap,
easy to get, can take the extreme temps, easy to see through them. In
addition, they don't weigh very much, so they're easy to move around, easy
to clean, fairly scratch resistant.



Martin S. Fisher

Director of Education

Nauticus, the National Maritime Center

One Waterside Drive

Norfolk, VA 23510

36°50'51"N 76°17'53"W 13 ft.

phone: (757) 664-1003, (800) 664-1080 ext. 41003

fax: (757) 623-1287 cell (757) 617-7080

[log in to unmask] <mailto:[log in to unmask]>
www.nauticus.org <http://www.nauticus.org>





ISEN-ASTC-L is a service of the Association of Science-Technology Centers

Incorporated, a worldwide network of science museums and related
institutions.

****************************************************************************
*

OK, this is one of those things where you know there has to be someone out

there who has thought of something better along the way...

We use your typical 5 or 10 gallon glass aquarium to do dry ice experiments.

(You know, floating bubbles, snuffing candles, the whole 9 yards) Each time

one breaks, I think "Gee, there has to be something better" but never get

around to it and then before you know it, it's 2 hours before the program,

so I run out and buy........another aquarium.

We like the aquarium mainly because it is transparent and easy to see the

bubbles floating and other stuff. It also helps that it can pretty much

hold up against the cold temps and is an easy to obtain off-the-shelf item.

Now I'm calling upon the collective wisdom of my ASTC colleagues: Who's got

a better idea?

I welcome your prompt thoughts and suggestions, as I need to buy one for

tomorrow morning!

Thanks!

Dante

Dante Centuori

Creative Director, Education

COSI Toledo

1 Discovery Way

Toledo, OH 43604-1579

419.244.2674 ext. 106

419.255.2674 FAX

[log in to unmask]

www.cositoledo.org

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