1. Week

Dolphin and Water Circuit For this activity, I created an interactive dolphin model that lights up when it touches the water. This simple electronics project helps students understand basic circuits and conductivity in a fun and engaging way. The project consists of a dolphin and a water shape, which I designed and cut using a laser cutter. The dolphin’s eye lights up when it comes into contact with the water, demonstrating a closed electrical circuit.

**Electronic Components Used

3V Coin Cell Battery – Provides power for the circuit. LED (Light-Emitting Diode) – Used as the dolphin’s eye, which lights up when the circuit is completed. Conductive Vinyl – Used to create the conductive path for the circuit. Wires – Connect the battery and LED. Soldering Materials – Used to attach the LED securely.

I first designed and laser-cut the shapes of the dolphin and the water from paper.

Using a vinyl cutter, I cut the conductive parts needed for the circuit.

I soldered the LED to the circuit, ensuring that the positive and negative connections were correctly placed. The dolphin and water were arranged in such a way that when the dolphin touches the water, the circuit closes, allowing electricity to flow and the LED to light up.

Fab Lab Armenia