Physical Science Activities Manual ________________________________________________________________________________________________________________ ________________________________________________________________________________________________________________ Center of Excellence for Science and Mathematics Education at The University of Martin 2. Thread a strip of insulated copper wire through the hole so that the wire passing through the plate is perpendicular to the plate. Loop the wire back down passing by the outside of the plate. The two ends of the wire should be hanging below the plate 3. Sprinkle some iron filings on the plate. Place a small compass on the edge of the plate. 4. Attach the ends of the wire to a dry cell battery on the table. The end coming from under the plate should be attached to the negative terminal. 5. Set a small compass on the inside edge of the plate. Observe the compass needle. Tap the plate gently and observe the filings. As in the first section of this lesson don't leave the wire hooked to the battery more than a few
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