1. Setup two or three sets of magnets on the carpet.
Let’s touch “N” or “S” of two magnets each other.
If your kids find that “N” of the magnet likes other “S”, let’s gather iron sand
at the park nearby.
2. Likewise, setup a compass on the table.
(Parents should be aware of other magnetic fields.)
Let’s observe that the compass indicates the North Pole of the earth.
4. Next, move “N” of the magnet near to the compass, and observe what happened
to the compass needle.
If “S” of the magnet is moved near to the compass, what happened?
Your kids can understand the needle of the compass is “N” of the magnet.
Magnetic field is attractive physics. This technology can produce linear motor
car, magnetic resonance imaging, or so.
Hope you and your kids enjoy the exam.