>
>
> Introduce them to Eddie Currents.  ;-)
>
>
2nd the Eddie Currents

I was absolutely intrigued with a demo of Eddie currents.  A horse shoe
magnet and a rectangular section of aluminium.

One end of the of the aluminium section was slotted.

Passing the non-slotted end thru the magnet was met with resistance while
passing the slotted end offered no resistance at all.

I have seen variations on the theme and I am still a huge fan of the
experiment.

As a young person I knew that aluminium was not attracted to magnets so the
fact the magnets had an effect on the aluminium had me intrigued.

Remember, that kids just love to show their understanding and also want to
learn, so give them lots and lots of opportunity to answer and ask
questions.  I often see little master/miss bursting with enthusiasm and
never get the opportunity to have their say.  I have seen science road
shows with really cool stuff but not allow enough time for the kids to have
their input.

I think just a little bit of show and leave the rest to their enquiring
minds with questions and answers will definitely consume 15 mins.

Justin
--=20
http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist
.