schoolscienceproject.blogspot.in
Magnetism Field lines
Lay a sheet of
drawing paper over a magnet - of course you already know how to make a magnet -
and scatter iron filings on it. Tap the paper lightly, and a pattern forms. The
filings form into curved lines and show the direction of the magnetic force.
You can make the pattern permanent. Dip the paper into melted candle wax and
let it cool. Scatter the iron filings on it. If you hold a hot iron over the
paper after the formation of the magnetic lines, the field lines, the pattern will
be fixed.
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