on the magnet
Iron filling is a filling which can be made by iron filling
in center because of its magnetic pull
Iron filings can't be dissolved in water, but, over time iron filling in water will rust away.
Iron rusts.
iron starts melting
The one that the field strength is stronger
Depends on the type of iron. Most is found unpure because it is melded with dirt, but sometimes, in rare cases, iron can be found untouched.
iron is just a mineral found in most protein
Magnet
substance
You will have a mixture of zinc and iron filings.
Iron