Visualizing magnetic fields around wires that carry electricity can be really fun and easy! Here are a couple of ways you can do this:

1. Using Iron Filings:

   • First, place a piece of cardboard over a straight wire that has electricity running through it.
   • Next, sprinkle some iron filings evenly on the cardboard and gently tap it. This will help the filings line up.
   • When you turn on the electricity, watch the filings move to show the magnetic field. You’ll see they form circles around the wire—pretty cool, right?

2. Using a Compass:

   • Grab a small compass and move it around the wire while the electricity is flowing.
   • You’ll see that the needle of the compass points in the same direction as the magnetic field lines. It will show you the circles around the wire.
   • This lets you see how strong the magnetic field is and which way it goes.

3. Right-Hand Rule:

   • Here’s a simple trick! If you point your thumb in the direction of the electricity and curl your fingers, your fingers will show you how the magnetic field wraps around the wire.

These methods not only show how magnetic fields work but also help you understand how electricity and magnetism are connected. So, go ahead and try them out!