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The purpose of this project is to make a fruit battery. In the first step you will use a voltmeter to show that the fruit can produce electricity. You will then try to use the electricity from fruit to light up a light bulb. Higher grade students will also compare different fruits to find out: Which fruit creates the most amount of electricity?
In this science fair project, construct batteries from various fruits and test them to see which one will produce the most electric current. Then, determine if it would be practical to use fruit as a natural source for generating electricity.
Your students will love this science experiment that has them creating fruit batteries and testing which fruit works the best. Free printables, including a reading passage, are included to help you make the most of this science experiment.
Fruit batteries use electrolytes (solution containing free ions, like salt water or lemon juice) to generate a voltage. Think of electrolytes as a material that dissolves in water to make a solution that conducts electricity. Fruit batteries also need electrodes made of conductive material, like metal.
Key Objectives. Identifying the fruits that are the most suitable for power production. Identifying the relations between the pH of the fruits and electrical conductivity. Presenting an idea to generate more affordable electricity to power rural schools / houses by using the idea obtained from the experiment. Materials. Copper wire. pH indicator.
A lemon on its own is not a battery. But add electrodes, make a path for electrons to move, and you have all the basic elements of a battery. Build your own lemon battery and feel energized when you juice up a small LED with electricity! Question to investigate.
In this project you will build a circuit that uses visible light, which is the part of the electromagnetic spectrum our eyes can detect, to automatically differentiate between red and green objects. Visible light comes in all the colors of the rainbow (which are measured by the wavelength of the light).
