Pencil experiment
This experiment will show that pencils conduct electricity while colored pencils do not. We will also explain the difference in materials and the reason why pencil lines can be erased with an eraser while colored pencil lines cannot.
Ballpoint pen experiment
The ballpoint pen, which is often used in everyday life, does not leak ink even when the cap is not on, and it can be used to dispense the right amount of ink when needed. This mysterious property is created by the ball at the tip of the pen. In this experiment, we will explain these features using a model. We will also show you how to write with it.
Thermo ink experiment
In this experiment, you will see the letters written with thermo ink disappear when heated. You will also see that the letters reappear when cooled. We will explain how thermo ink changes color when heated or cooled, along with a chemical explanation.
UT CAST May Festival2025 