AstroMedia Iron Filings
With these cast iron filings you can make magnetic fields visible! You can sprinkle the filings on a sheet of paper or cardboard and hold a magnet underneath, or you put them into a glass jar and hold the magnet against the glass.
You get especially impressive results if you also fill the glass with a thin, clear oil. The nearly free-floating filings will adjust themselves into bizarre spiky forms along the magnetic filed lines. Strong neodymium magnets are ideal for these experiments.
Glass and magnet are not included.
Grain size: 0.05-0.15mm
- Normally on display?
- Yes - But Check First If Making A Special Journey!