> > Introduce them to Eddie Currents.  ;-)
> >
> >
> 2nd the Eddie Currents
>=20
> I was absolutely intrigued with a demo of Eddie currents.  A horse shoe
> magnet and a rectangular section of aluminium.
>=20
> One end of the of the aluminium section was slotted.
>=20
> Passing the non-slotted end thru the magnet was met with resistance while
> passing the slotted end offered no resistance at all.
>=20
> I have seen variations on the theme and I am still a huge fan of the
> experiment.
>=20
> 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.
>=20
> Remember, that kids just love to show their understanding and also want t=
o
> learn, so give them lots and lots of opportunity to answer and ask questi=
ons.
> 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 reall=
y
> cool stuff but not allow enough time for the kids to have their input.
>=20
> I think just a little bit of show and leave the rest to their enquiring m=
inds with
> questions and answers will definitely consume 15 mins.

This is perhaps another thing that could be combined with the magnetic fiel=
d due to current flow experiment that I suggested. If one could set up a co=
il of wire that could be used as a generator to drive a current through the=
 hanging wires could reinforce the idea that magnetics work at both ends of=
 the loop.



--=20
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