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Electric Motor
This simple electric motor required two of our 20 minute Noon Science
sessions to build, and required a moderate amount of adult help
for the younger students. But it seemed to be fun for all students,
including us so-called adults. We sent home some materials and
instructions for the parents so that they could help, too! Material
cost is about $3 per student, including printing, in quantities of
10 or above.
Download the motor
instructions
(2 MB .doc file).
Download a short movie clip (1.4MB .mov
file) or (1.9MB .mp4 file) that
shows
the motor
running. Get a free version of RealPlayer
to view the movie.
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Lemon Batteries (available
soon!)
There is a lot of mythology on the web about making voltaic cells
from lemons, potatoes or vinegar. We dispel some of these myths so that
the student or instructor will realistically know what performance can
be expected, and then we describe some results we've obtained. Maybe no
lemon-powered cars today, but it's fun stuff
anyway!
Download the lemon battery
instructions (2 MB .doc file).
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