To build an electromagnet, you will need

What is the main difference in an electromagnet and bar magnet?

If you wrap a wire around a nail 15 times and attach a battery, you can pick up 2 paper clips. What do you need to do in order to pick up more paperclips?

An electromagnet is

A bar magnet is

Can a nail be magnetic?

Where would you find an electromagnet?

An electromagnet

What could an electromagnet pick up?

Is electricity needed to create an electromagnet?

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