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This video explains how electromagnets work. Electromagnet science project instructions: https://www.sciencebuddies.org/science-fair-projects/project-ideas/Elec_p035/electricity-electronics/strength-of-an-electromagnet?ytid=cxELqN7wjS0&ytsrc=description Science Buddies also hosts a library of over 1,200 other free science fair "Project Ideas ...
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