See magnetic fields in action! Manipulating iron filings with a magnet offers elementary-age children a fun hands-on experience making magnetic field patterns.
These iron filings are just what you need to build an activity set to match Meg Fedorowicz's Nurturing the Young Scientist (SC413)
activities: Magnet Activities, Magnetism - Iron Filings, Magnet Activities, Magnetism - Pattern of Iron Filings
Shaker-top dispenser bottle allows the filings to be dispensed as needed; 12 oz. Ages 8+.