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eBook, 2017
Current format, eBook, 2017, , Available.
eBook, 2017
Current format, eBook, 2017, , Available. Offered in 0 more formats
A colorful magnet holds a drawing to a fridge. Paperclips stick to a magnet. Magnetic forces are at work all around you. But what exactly is a magnet? And how do magnets work?
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