Hi all
The first time I discovered "Touchabubbles" (those bubbles with glue
in them that dry in mid air so you can catch them) I was renting the
smallest room in the world. It cost a fortune (it was in central
London) and was genuinely the size of two single beds. I had my fan
heater blowing air to heat the room up and never realised the
wonderful circular air currents until I tried out the bubbles. They
shot up in the hot air by the heater and then sank as they got to the
window and then went back up as they got back to the heater. For about
two minutes the bubbles just went round and round and round...
I don't know whether this would work in a larger room but thanks for
reminding me about a little moment of wonder that I'd forgotten about
for over ten years.
James
www.ScienceShowsForSchools.com
On 3 December 2010 13:25, Alessio Bernardelli
<[log in to unmask]> wrote:
> Thanks for this reference Tristan. I will check it out!
> Alessio.
>
> On Fri, Dec 3, 2010 at 12:54 PM, Tristan Bunn (TOC)
> <[log in to unmask]> wrote:
>>
>> Hi Alessio,
>>
>> School Science Review September 2010 (vol 92, #338) features an article on
>> modelling convection currents featuring both demonstrations and animations
>> that you may find useful. ‘Convection currants? Using scientific models to
>> challenge pupils’ understanding.’
>>
>> Tristan
>>
>>
>>
>> From: psci-com: on public engagement with science
>> [mailto:[log in to unmask]] On Behalf Of Alessio Bernardelli
>> Sent: 03 December 2010 12:35
>> To: [log in to unmask]
>> Subject: Re: [PSCI-COM] Convection Currents Talk Show
>>
>>
>>
>> Hi Richard,
>>
>> Thanks for your feedback, but you answer seems to suggest I would use only
>> this Flash animation to teach the concept of convection currents instead of
>> using real demonstrations. However, in the video I point out that I would
>> use some other experiments and demonstrations before showing and using this
>> animation as a Talk Show. The purpose of the video is not outlining the
>> demos you do in your shows or the many other demos that Physics Teachers
>> already do, but to show how you could integrate this resource in your
>> everyday teaching, I.e. Integrating, not substituting!
>>
>> As for insulting the children's intelligence, my experience is far from
>> this. Pupils usually like this approach very much and by the way I have not
>> invented this type of strategy to get children talk about Science, but I
>> have seen this technique being used by Great Science Educators like Anne
>> Goldsworthy, who by the way has utilised the similar role plays in many of
>> her courses and books she writes for the ASE!
>>
>> Thanks again for your feedback and all the best in your shows.
>>
>> Alessio
>>
>> Sent from my iPhone
>>
>>
>>
>> Alessio Bernardelli
>>
>> IoP Network Coordinator (Gloucestershire)
>>
>> Croesyceiliog School
>>
>> Woodland Rd
>>
>> Cwmbran, NP44 2YB
>>
>> Work: 0044(0)1633 645939
>>
>> Mobile: 0044(0)07527528088
>>
>> Twitter: @asober
>>
>> Blog: alessiobernardelli.wordpress.com
>>
>> On 3 Dec 2010, at 12:04, Richard Ellam
>> <[log in to unmask]> wrote:
>>
>> HI
>>
>>
>>
>> NIce idea - but why do a flash animation at all when you can do some real
>> demonstrations with real things to show how convection works?
>>
>>
>>
>> If I was asked to demonstrate convection I wouldn't go anywhere near doing
>> some kind of fake chatshow, which I think probably insults the intelligence
>> of the kids. Id start by making and flying some hot air balloons. You can
>> easily make a hot air balloon launcher which will fill and launch 90 cm dia
>> balloons at a rate of 1 a minute, and get them hot enough to fly to the top
>> of a school hall. Sending a succession of balloons up, and then watching as
>> they come down again basically makes the mechanism of convection visible to
>> all. - The balloons are merely hitching a ride on the hot air.
>>
>>
>>
>> And you can then show, with a steam iron, a light source , and a screen,
>> currents of hot air rising from a heater.
>>
>>
>>
>> And then I'd suggest doing a separate demo - the thing with the gas jars
>> and water is pretty, but boring as its a static demonstration of a dynamic
>> process, to show that convection also occurs in liquids.
>>
>>
>>
>> One of the reasons that too few students study science in this country is
>> that they think its boring, and has too much screen based stuff in it. Flash
>> animations and other video stuff has its place in showing stuff you can't do
>> for real in a school, but using an animation instead of doing something for
>> real is a bit of a cop-out and rather adds to the perception that science is
>> boring. I got into science because when I was at school it was very
>> hands-on, and in my shows I try to recreate some of that magic of
>> experiencing real things with all their imperfections, rather than showing
>> the edited perfection of an animation.
>>
>>
>>
>> Cheers
>>
>>
>>
>> Richard.
>>
>>
>>
>> Richard Ellam
>>
>> L M Interactive
>>
>> Science Shows and Hands-On Stuff
>>
>> [log in to unmask]
>>
>>
>>
>>
>>
>> On 3 Dec 2010, at 11:07, Alessio Bernardelli wrote:
>>
>> Hi All,
>>
>> I have written a blog post about an interesting resource on Convection
>> Currents that could encourage your pupils to talk about Physics in more
>> creative ways!
>>
>> Please have a look and let me know what you think.
>>
>>
>>
>> http://alessiobernardelli.wordpress.com/2010/12/03/convection-talk-show/
>>
>>
>>
>> Thanks,
>>
>> Alessio.
>>
>>
>>
>> Alessio Bernardelli
>>
>> IoP Network Coordinator
>> 109 Maes Y Coed Rd
>> Cardiff
>> CF14 4HE
>>
>> Tel: 02920315988
>> Mobile: 07527528088
>>
>> Blog: alessiobernardelli.wordpress.com
>> Twitter: twitter.com/aso.ber
>>
>>
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www.ScienceShowsForSchools.com
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