Why iron is a magnet when they become caresses with a magnet?

We bought and tried magnetic energy is what we discovered: question яαиdoм єpicиess : Why is the iron becomes a magnet when you cuddle with a magnet This is for my science homework and what we did, stroke was a magnet and an iron nail to make it magnetic. The iron nail, then pulled out a bunch of paper clips as an alternative of the precise 30 seconds. (In other words, we have the iron nail a powerful magnet even though stroking)? So how does the nail and why are magnetically Thanks

Tesla's Generator