Iron Filings: Three Different Particle Sizes for Three Times the Fun!

A long-time staple for scientific experiments, iron filings are very, very small pieces of iron (duh!). Because iron is a ferromagnetic material, it responds to magnets. And, because filings are so (very!) small, particles of iron filings are perfect for lining up to demonstrate various principles of magnetism, particularly magnetic fields. Iron filings can be […]