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The excellent Periodic Table of Videos made at Nottingham University should give you a good basis for ideas - see http://www.periodicvideos.com/# Tim Date: Thu, 3 Dec 2009 23:19:12 +0000 From: [log in to unmask] Subject: Re: [PSCI-COM] Reactivity series of metals To: [log in to unmask] I don't know what teachers want, but I remember as an A-level chemistry student being shown a risky demo of a radical reaction. I suppose it only looked like an explosion, but it was hilarious watching Mr Bush and the lab assistant fail three times and then jump a mile on the fourth attempt. I almost miss the lab... All student should do their own flame tests, complexes of transition metals and iodine clocks, although they would look kind of cool on video. Chemiluminescence demos are always impressive with plenty of interesting chemistry behind it relevant to A-level students. Perhaps your "reactivity of metal" teachers are looking beyond sodium to demonstrate the increase in reactivity Li --> Na --> K --> Rb --> (don't know if you can go any further) and use it to support the concept of shell of electrons? Best, Emma.--------------------------------------------------------- Emma Welsh PhD Cochrane Systematic Reviewer Cochrane Airways Group Division of Community Health Sciences 6th Floor Hunter Wing St George's University of London London UK, SW17 0RE +44 (0)20 8725 2792 2009/12/3 Alom Shaha <[log in to unmask]> Hello, I'm about to make a series of demonstration videos for teachers to use in class. I have been trying to get teachers to tell me what videos would be particularly useful. A common request has been "reactivity of metals". I would have thought this was something that was relatively easy to do in schools. I'm a Physics teacher but I would certainly feel confident doing the standard "sodium in water" type demonstrations in class myself. Am I missing something? I can imagine that teachers might want to do the demonstrations for "real" and then use the videos to recap. Any other thoughts? Alom -- www.alomshaha.com ********************************************************************** 1. To suspend yourself from the list, whilst on leave, for example, send an email to mailto:[log in to unmask] with the following message: set psci-com nomail -- [include hyphens] 2. To resume email from the list, send an email to [log in to unmask] with the message: set psci-com mail -- [include hyphens] 3. To leave psci-com, send an email to [log in to unmask] with the message: leave psci-com -- [include hyphens] 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.ac.uk 6. 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