Magnets have two poles: north and south.

Opposite poles attract; like poles repel.

Earth itself acts like a giant magnet.

Magnetism is caused by the movement of electrons.

Magnets can attract certain metals like iron, nickel, and cobalt.

Electromagnets use electricity to create magnetism.

Magnetic fields surround magnets and affect other magnets or metals.

The compass uses Earth’s magnetic field to point north.

Magnetism is used in many devices like motors and MRI machines.

Some animals use Earth’s magnetic field to navigate during migration.