The "crushing cans with steam" science experiment is a great way to
teach kids about air pressure and the different states of matter (gas,
liquid, solid).

I put together a quick page on how to perform the experiment and the
scientific principles behind it.

Be sure to carefully supervise your little scientists since this
procedure involves heating elements.

http://www.paulstravelpictures.com/S...ent/index.html

Cheers,
Paul