Changing the shape or volume of a mercury barometer does not change the height of the mercury column. This demonstrations required a great deal of mercury. Mercury is toxic, and accidental spills are especially dangerous.
CCA! volumes are organized according to topics in chemistry. Some movies are included on more than one volume of CCA! because they can be used to demonstrate more than one topic or idea.
Viewing Chemistry Comes Alive! Video
Chemistry Comes Alive! uses QuickTime and requires QuickTime version 5 or later and the QuickTime plug-in in order to view the video.
You can download the latest version of QuickTime from the Apple Computer, Inc. WWW site.