From: Algis Sodonis (asodonis@urbanschool.org)
Date: Thu Oct 24 2002 - 13:55:15 PDT
Message-id: <fc.000f7611003427733b9aca00b97975ee.342775@urbanschool.org> Date: Thu, 24 Oct 2002 13:55:15 -0700 Subject: Re: pinhole Sound and Magnetism From: "Algis Sodonis" <asodonis@urbanschool.org>
I don't know if this is what you're thinking about, but you could talk about speakers and how magnets are used to make speakers. You could take a part an old speaker and show the parts.
Algis Sodonis
pinhole@exploratorium.edu writes:
>My third graders are goofing around with sound
>experiments and a few of my fourth graders have been
>doing some magnetism stuff. One of the fourth graders
>asked me what happens to magnetism when it "gets
>noisy". We talked a bit and she told me that she
>wonders if really fast vibrations, like a high pitch,
>change how magnets work. My first thought, at the
>ranges we talk about in elementary school, there's no
>easy connection, but then...I can't think of any
>experiment to provide a vehicle to explore
>magnetism/sound for elementary school. Any ideas?
>
>With firm handshake,
>Raleigh
>
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