FOR KIDS: Making rocks into magnets
Lab experiments show how certain types of stones can morph into magnets
Web edition: October 12, 2012
Lodestone is the most common type of natural magnet.
Credit: Wikimedia/Ryan Somma
Heat up a rock. Most likely, all you will get is a hot rock. But heat up the right type of stone to just the right temperature and you could end up with a magnet, scientists now report.
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