Pile up two polarizing plates on the table.
Rotate upper plate 45 degrees or 90 degrees, and observe the strength of light.
Next, pile up a polarizing plate on the monitor.
The monitor of PC and cellular phone is suitable to observe the phenomena.
If the strength of light is changed according to the angle of plate, the similar
polarizing plate is embedded in the monitor.
Lastly, sellotape on the acrylic plate as you like.
Multi-angle, multiple sellotapes are preferred to this exam.
Sandwich the acrylic plate between two polarizing plates.
Let’s observe the created fantastic lights.
Hope you and your kids enjoy the exam.
