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Draw Magnetic
Lines
Drawing or revealing the lines of
magnetic force is one of the educational experiments or science projects for
young students in grades 4 to 8. Of course it is never late and adults may also
perform such experiments as a hobby, for learning or as an art. This is how it
is done:
Start by placing a bar magnet or
any other type of magnet on a flat surface such as a table. Secure the magnet in
place by a few strips of clear adhesive tape or masking tape.
Place a cardboard or heavy paper
over the magnet so that the magnet is almost at the center of the paper.
To keep the paper flat, place
small articles or balls of paper under the paper so that it will stay
horizontal.
Slowly and gradually sprinkle iron
filings on the paper. You may need to tap on the table or the paper so that the
iron particles can reposition themselves by magnetic forces.
When your magnetic lines are shown
clearly, you can fix them in place by some hair spray or clear spray paint.
(Warning: Hair sprays and spray paints are flammable. Do
your experiment away from fire and in a well ventilated area. Spray paint may
get to other areas of your work table. Cover such areas with newspaper if
needed.)
Wait enough time until the spray
paint is fully dry. Then lift your newly made artwork and clean the area. You
may need to do this a few times until you get it right.
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information please call 973-405-6249. |
