So, today we did some experiment using mud and water to light the LED.
The ingredients that we used were:
1. Water
2. Paper cups
3. Salt to enhance the voltage
4. Volt-Amp Meter
5. Copper Wires
6. Zinc plated screws
7. LED
8. Wires
9. Soil
10. Pennies
Steps:
1. We filled the paper cup with soil about 3/4 of the cup. We also added water and salt to enhance the acidity of the soil.
2. We prepared the two metals needed as conductors so electrons can flow from the mud to the LED. We tied the pennies and copper wire together because a larger surface of copper wire can help increase the voltage needed to light the LED.
3. We put the two metals in the cup filled with mud, and then we tested the voltage produced using the Volt-Amp meter. It read about 0.9 V and if we added more salt, it could reach 1.2 V
4. We made another cup filled with the same materials because we needed about 2V to light one LED.
5. We wired everything (metals and LED) but it didn’t light up. We were stuck because we had tried to change the wiring so many times but the LED wouldn’t light up. We decided to purchase some materials tomorrow and continue the experiments.
BIO-LAMP 