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Problem to be Solved: What metals will produce the most volts in a wet cell? Hypothesis:I think carbon and magnesium will be the best because they are used in dry cells. Procedure:
Take different metals and put them in different types of electrolyte and test which pair of dissimilar metals in each type will create the greatest voltage.
Materials- copper, nickel, zinc, aluminum, carbon, an eight range multi-tester, magnesium, and electrolyte (lemon juice and salt water).
My hypothesis was correct that magnesium and carbon produced the greatest amount of voltage in both electrolytes. One thing I found interesting is that in both electrolytes all the metals had the same polarity when matched together. One of my unanswered questions was "Why did the amount of surface area affect the amount of voltage produced?" One way I could improve my experiment is to use more metals and different electrolytes to see if there are better voltages with more materials. Biblical Application:My project is on batteries and the law of physics. God set the laws of physics and that they will endure as long as earth does but just like God we'll never see them occurring as said in Ecclesiastes 3:11b- "no man can find out the work that God made from beginning to end." So no one can find out everything but the more we know the closer we are to God. |
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300 Cromwell Street, Phillipsburg, New Jersey 08865 |
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1st Place, 8th Physical Science, PCA Science Fair