From what information I've gathered tools I would use to make an electro magnet are a D battery, a wire, and a nail.I would choose a D battery because big batteries have a lot of energy so I can use the electro magnet for a long time. I would also choose a wire because I need to coil the wire around the nail to make a circuit and its easy to wrap it around the nail. I would choose a big nail so then I could pick up more than one thing at a time.
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