The zinc goes back to its normal state, and the battery “dies”. Eventually, the electrolyte uses all its energy to light the light bulb and doesn’t react with the zinc anymore. Both sides of the battery have to be connected to the light bulb in order for the light bulb to illuminate. We can see the electricity flowing by attaching a light bulb in the middle. The positive ions move from the zinc to the copper resulting in an electrical current back from the positive to the negative. By connecting the two ends of a battery, the energy flows out as electricity. The acid reacts with the zinc, some of which is changed into positively charged ions. The copper forms the positive (+) battery terminal, and the zinc is the negative (-) terminal. General batteries are stored energy and consist of copper and zinc with an acidic liquid or paste called electrolyte inside a metal cylinder. This constant flow of “more to less” is the basis of electricity, and we can observe the motion of this electricity through a light bulb. The more electrically charge something is, the more the universe is looking to find a home for the extra charge. Some materials have more electrical charge while others have less. The universe seems to move towards order. The pack put this knowledge into action by building a working battery with lemons with enough current to light a light bulb. At the February pack meeting, Scouts learned about electrical currents using simple materials like lemons, copper, and zinc.
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