Bulk Iron Filings- 1 LB Iron Filings for Science Experiments, by American Heritage Industries

Iron filings are a by product of many different manufacturing services and industries. Iron is one of only a few ferromagnetic materials, and iron is the most common and most frequently used in demonstrations and experiments about magnetism, because of its abundance and purity. When spread out on a white note card above a bar magnet, the iron filings will quickly aline along the magnetic fields, showing where the fields are, and how the fields of different magnets interact. This makes this bulk version of these iron filings a perfect investment to show your kids or students how magnets can work.