ScienceWiz - 16gm Iron Filings AWARD WINNING ScienceWiz curriculum is designed to teach kids science in an intuitive and natural progression Explore magnetism with this pack of iron filings from the award winning science experiment creator, Science Wiz Each pack holds 16 grams (0.56 ounces) of fine iron filings Use with a magnet to track magnetic field lines and learn the basics of magnetism Intended to be parts for use with science projects, science fairs, etc. and are provided with minimal to no operating instructions