The really neat thing about it is that the density of the soda is greater
than 1 regardless if it is diet or regular. Water's denisty is 0.998 g/mL.
Pepsi was something like 1.15 g/mL and Diet Pepsi was something like 1.02
g/mL. Floating or sinking in water is probably a combination of density and
the partial pressure of CO2 in the can.
Mike Davis
Science Theatre Productions
www.stproductions.net
[EMAIL PROTECTED]
(773)343-2500
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of Michael Lach
Sent: Thursday, August 30, 2001 12:16 PM
To: CSI Science
Subject: Re: [CPS Science]Demonstration Training
On 8/30/01 11:01 AM, "Mike Davis" <[EMAIL PROTECTED]> wrote:
> For example, determining why Diet Pepsi floats in water while Pepsi sinks
> can be either a demonstration or an experiment.
There's also a temperature dependency on this. When I did this demo, I would
hold a Coke can tightly in my hand for a few minutes and that was enough
heat to make it float. Water was at room temperature.
There are lots of internet sites with demos like (I think) Mike Davis is
describing. Would they be of interest to list members?
-ML
--
Michael Lach
Chicago Public Schools
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