The magnetic field lines of a bar magnet can be viewed by using compasses or by shaking iron filings onto a platform above the magnet. Place the magnet on top of the paper in view of the document ...

Magnets are also surrounded by a similar three-dimensional field. This can be "seen" in two dimensions if iron filings are sprinkled on a sheet of paper placed over the magnet. The filings align ...

A 1/2 inch diameter cylindrical magnet works well. Iron Filings: Available from: Science supply stores like Home Science Tools, Carolina Biological, or Educational Innovations Some craft stores in ...

The iron filings are attracted to the magnet, but the sand is not ... a mixture of insoluble solid and liquid. There is filter paper in a filter funnel above another beaker.