The last tray, the fine one, collected the iron filings.

You couldn't pick up a car with your remote, but maybe some small iron filings or even a paper clip.

You can look at a wire's magnetic field using iron filings.

The good old bar magnet under a piece of paper with iron filings on top.

Her voice sounded as if it had been mixed with iron filings.

Let's replace the water with a ton of iron filings.

What looked like a handful of iron filings fell to the table.

Can you tell us why people did not show up from all over, like iron filings drawn to a magnet?

Then sandwich the message between some other paper and sprinkle iron filings on the top.

I said, "But it'll show up if you spread iron filings across a piece of paper."