Just in case there are questions, the watershed district and university have posted information boxes at the three sites, explaining the project and that the iron filings are harmless to humans ...
Description: A sealed glass tube filled with iron flings may be used to demonstrate magnetization of a ferromagnet. Shake the filings into the long thin section of the tube. Magnetize the filings by ...
A tube filled with iron filings is magnetized and the magnetization is shown using a compass. Note: this demonstration can be shown on the overhead projector and is appropriate for large lecture halls ...
Just in case there are questions, the watershed district and university have posted information boxes at the three sites, explaining the project and that the iron filings are harmless to humans ...
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