Explore the interactions between a compass and bar magnet. Discover how you can use a battery and wire to make a magnet! Can you make it a stronger magnet? Can you make the magnetic field reverse?
Explore the interactions between a compass and bar magnet. Relate the Earth's magnetic field to a bar magnet. Vary the magnet's strength, and see how things change both inside and outside. Measure the direction and magnitude of the magnetic field.