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Two great demos that we use at Techniquest that look really magical are Solid carbon dioxide pellets in water with fairy liquid. You get a fantastic cauldron effect with bubbles of spooky looking water vapour (and colourless carbon dioxide gas)! You can even place candles around the bowl and they will go out (carbon dioxide will extinguish them)! A perfect Fire extinguisher potion, Snape would be proud! A chemiluminescence reaction using powdered luminol (and others, not sure of exact chemical composition sorry). Add powder to water in spherical flask, swirl and they will glow wonderfully. "Lumos!" If you want to branch away from Alchemy you could always do a Bernoulli demo. At least half the children who play with the Bernoulli Ball wave their hands above it and chant "Wingardium Leviosa" (Harry Potters levitating spell). Hope this helps, good luck, Jo Harris -- Jo Harris, MSc in Communicating Science Student Techniquest, Stuart Street, Cardiff, UK. CF10 5BW Tel: +44 (0) 29 20 475 475 ext 255 Fax: +44 (0) 29 20 482 517 Web: http://www.techniquest.org Techniquest is a Company Limited by Guarantee, registered in England and Wales, no. 1955696 It is a registered charity, no. 517722 From: Katherine Cox <[log in to unmask]> Reply-To: "psci-com: on public engagement with science" ********************************************************************** 1. To suspend yourself from the list, whilst on leave, for example, send an email to [log in to unmask] with the following message: set psci-com nomail 2. To resume email from the list, send the following message: set psci-com mail 3. To leave psci-com, send an email to [log in to unmask] with the message: leave psci-com 4. Further information about the psci-com discussion list, including list archive, can be found at the list web site: http://www.jiscmail.ac.uk/lists/psci-com.html 5. The psci-com gateway to internet resources on science communication and science and society can be found at http://psci-com.org.uk **********************************************************************