What are magnetic field lines?

Magnetic field lines are invisible lines that show how a magnet’s power moves from one end to the other.

Imagine you have a big bowl of spaghetti, each strand represents a magnetic field line. When you stir it, the strands move around like they’re dancing with each other. That's kind of what happens inside a magnet. The lines show how the magnet’s power flows from its north end to its south end.

If you bring two magnets close together, they either push or pull, just like when you're on a playground and you try to grab the same swing at the same time. If both ends are facing the same way (north to north), they push apart, like friends who don't want to share. But if one is north and the other is south, they pull together, just like when two kids on swings move in sync.

These lines help us see what’s happening even though we can’t touch them, it's like having a map of the magnet’s power dance!