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for the subject:

Scholars who research "Magnetism" look at a class of physical phenomena that are mediated by magnetic fields.

Diamagnetism, Paramagnetism, Ferromagnetism are a few categories of "Magnetism".

Some motivations are to learn how forces are attracted to each other.

Alexander Neckam, Peter Peregrinus de Maricourt are some authorities of "Magnetism".

What kind of card would you like to make?

Choice – A multiple-choice question. (We need more of these!)
Page – A written document to read, in Markdown format. (This one's the easiest.)
Video – A YouTube or Vimeo video.
Embed – An iframe from any site. Does not score learner responses.

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so you can easily continue later!