Iron filings are great to experiment with magnetic fields. Place a magnet under a piece of paper and shake the filings on top. The filings will reveal the magnetic field lines. (Hint: Place your magnet in a plastic zip-lock ...

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Iron filings are great to experiment with magnetic fields. Place a magnet under a piece of paper and shake the filings on top. The filings will reveal the magnetic field lines. (Hint: Place your magnet in a plastic zip-lock bag to avoid the mess of cleaning iron filings off your magnet.) Read more on our Blog! Read more on our Blog!

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