rising water level science

Date view Thread view Subject view Author view Attachment view

From: Treena Joi (tjoi@stanfordalumni.org)
Date: Fri Jan 16 2004 - 19:51:35 PST 

Date: Fri, 16 Jan 2004 19:51:35 -0800
From: Treena Joi <tjoi@stanfordalumni.org>
Subject: rising water level science
Message-ID: <940iaqDzj4768S07.1074311495@uwdvg007.cms.usa.net>

 I have a student who wishes to prove that when burning matches suspended
on water in a closed glass (glass set on top as they burn), the rising
watre level is due to the consumption of oxygen -- my understanding is
that another gas is produced, effectively replacing any consumed O2, and
that the rise in the water comes from a temperature difference -- First,
is this understanding correct? Second, how do I channel this students
energy? It's not enough to say, it is such and such gas replacing the O2
... can anyone think of a way to demonstrate that it is indeed due to
gases occupying less space when cooled

Treena Joiful

____________________________________________________________________
   

Date view Thread view Subject view Author view Attachment view

This archive was generated by hypermail 2.1.3 : Mon Aug 02 2004 - 12:05:34 PDT