CITRUS FRUIT EXPERIMENT

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Presentation transcript:

CITRUS FRUIT EXPERIMENT COMENIUS GROUP 12.05.2014

Let’s do it! We met to perform the experiment and we brought some citrus fruit

OUR MEASUREMENTS ORANGES LEMONS GRAPEFRUITS The number of fruit 1 2 U   ORANGES LEMONS GRAPEFRUITS The number of fruit 1 2 U mV 16 65 W (wide) L (length) 80 62 15 51 8 40

Procedure The estimated experiment time for this activity is about five to ten minutes. It does not take long to create the fruit battery! Now, the first step is to take your citrus fruit of choice in hand, and squeeze it on all sides with your hands without breaking the skin. Your aim is to soften the citrus fruit enough to extract its juices.  The next step is to puncture the citrus fruit with the nails. Insert the nails into the fruit about 2 inches away from each other, in such a way that the two nails stop at the centre of the fruit without touching.

Discussion & Results Citrus fruits have an acidic content, and the more acidic it is, the better it is for conducting electricity. This is the reason why even though the nails were not touching each other, your fruit battery still worked! The fruit contains positively charged ions. When you inserted the zinc nail into the fruit, the negatively charged ions or the electrons started to move from the fruit to the zinc nail thus leaving the protons in the fruit. This transfer of electrons generates electricity as soon as you attach the wires to the nail.

Any type of citrus fruit, be it lemon, orange or sweet lime, will generate electricity when they are properly connected in a completed electrical circuit. In a fruit circuit, the fruit acts as a battery. The citric acid and water in the fruit act as an electrolyte, thus enabling the flow of electricity through the circuit. In a normal battery, be it of any size, two metals are used to generate electrons, and a conductive chemical eases the flow of these electrons through the circuit. When the fruit acts as a battery, the acid and water contained in it act as the conductive chemical.