For kids' homemade solar panels, get solar cells made from copper. These
copper cells are fun alternatives but can't be used to generate much
They could power LED bulbs which can be used to decorate the garden.
● Wheat of copper
● Microampere meter
● Metal shears
● Electric stove
● 2 Alligator clips
● A plastic cup
1. You start out by cutting two pieces of copper that can fit into your plastic cup and at the same time can be heated on your stove. Turn the temperature on the highest and heat up one piece of metal. You will see that it will begin to change colors, from red to black.
2. After about 30 minutes: turn off the stove and you will see that the black copper piece is starting to cool down and turn into "copper color" a gain. When the copper has been cooled for about 20 min then it's time to remove some of the black spots on its surface. You want to be very delicate with this step. If you scrub too hard you can damage the thin red oxide layer you have created with the heating.
Try to wash the copper with water and gently use the sandpaper to remove the easiest black spots.
3. Now, it's time to make the solar cell. Take the two pieces of copper sheet, (one is heated the other one is not) and place then in the plastic cup. They are placed apart but still facing each other.
4. Add hot water and a couple of tablespoons of salt to the cup and attach the alligator clips to the copper sheets (one clip for each sheet).
5. Now attach the microampere meter to the two clips and bring the cup out in the sun to see if it produces any electricity. If it does then congratulate your kid for creating their first homemade solar cell.
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