Est. delivery Thu, Jun 12 - Mon, Jun 16Estimated delivery Thu, Jun 12 - Mon, Jun 16
Returns:
30 days returns. Buyer pays for return shipping. If you use an eBay shipping label, it will be deducted from your refund amount.
Condition:
NewNew
Map magnetic fields using iron filings and a magnet! Simply sprinkle a small amount of iron filings onto paper and move a magnet underneath to illustrate the pole patterns of the magnetic force field.
I bought these iron filings for homeschool, to demonstrate magnetic lines of force, and to show that magnetism penetrates glass, wood, paper, etc. The filings are small enough to demonstrate weak as well as strong fields. They did not become magnetized even when using rare earth magnets, so that they can be reused.