Which Liquid Cleans A Coin The All-time?

Earlier

Trouble-

Did you know that almost coins circulate for most 25 years until they are too worn to be used?! I always wondered if I can somehow clean a coin then that way we can use coins forever and non waste the copper, zinc, or nickel. From that indicate on, I wanted to test my theory.

Hypothesis-

For my money experiment, I predict that Lemon Juice would do the best considering of it's very strong acids. This would clean the tarnish off them, since acids are very good at dissolving metals. I also predict that Cola would practice the worst since information technology kills our teeth, and is not very good at cleaning things.

Procedure-

    1. Fill 4 cups each, one quarter full with each of the cleaning solutions. (4 with Cola, 4 with Baking Soda Paste, 4 with Orange Juice, 4 with Water, iv with Dish Soap, four with Lemon Juice.)

    2. Tape each coin's condition prior to placing it into its cup.

    3. Place each type of coin into each solution.

    4. Allow coins soak for 36 hours

    5. Take out the coins, and identify them on a paper towel. Label where the coins came from.

6. Tape your observations.

Afterwards

Conclusion-

My data proved my hypothesis right and wrong. Lemon Juice did do the best, getting an average of rating of 7.5! Coming in second was Dish Lather which got an average rating of seven. A 3 fashion tie which consisted of H2o, Cola, and Orange Juice, got an boilerplate rating of 5.5. This came to a surprise to me since Cola ordinarily doesn't clean anything, just makes them worse. Last, Baking Soda Paste got an average rating of merely ii.5.

Abstract-

Did you know that virtually coins broadcast for about 25 years until they are too worn to exist used! That'due south pretty amazing because the fact that a dollar pecker can merely last for about 18 months. Coins go fashion dorsum, fashion back to 619-560 B.C. Era, where the King of Lydia, Alyattes, were mentioned on all of the coins. Dorsum then, they were made of electrum, silver, and gold. Today, they are made from copper, nickel, and zinc, which brings us to my experiment. For my science fair experiment, I wanted to answer the question of "Which Blazon Of Liquid Can Make clean A Money The Best?" My blazon of liquids consisted of Cola, Baking Soda Paste, Orangish Juice, Water, Lemon Juice, and Dish Soap. I hypothesized that Lemon Juice would clean a money the best because of it'southward very stiff acids.

To practice my experiment, I found 24 cups to use. I then filled 4 cups each, 1 quarter full with each of the cleaning solutions. (4 with Cola, four with Baking Soda Paste, 4 with Orange Juice.) Before I placed each type of coin into the liquids, I recorded how worn out they were. I then placed each different type of coin into the cups, and permit them soak in the solutions for 36 hours.

36 hours later, I took the coins out and recorded what I saw. I rated them on a 1-10 scale from how well the solutions cleaned the coins, 10 being the best, and 1 beingness the worst. For the Cola, the boilerplate rating information technology received after the examination was a solid 5.5. This was to me, surprising since Cola is usually known as killing teeth, not cleaning them. For Orangish Juice, the average rating was a 5.v tying with Cola. For Baking Soda Paste, the average rating was a 2.v. Blistering Soda paste actually didn't evidence much improvement on the coins. For water, the average rating was once again 5.v, tying with both Cola and Orange Juice. For lemon juice, the average rating was a 7.5! Lemon juice, as I thought was going to exist the best considering of its acids. Final but not least, for dish lather, the average rating was a 7, well-nigh beating out Lemon Juice.

My results showed that strong acids such every bit Lemon Juice, were clearly the all-time at cleaning a dingy, worn out coin. This experiment showed that my hypothesis was correct. Lemon Juice was the articulate winner, although, dish soap was not far behind. To my surprise Cola didn't do that bad since it'due south known equally the "destroyer" to teeth, coming in a iii way 3rd place tie with Orange Juice, and Water. Baking Soda came in last, with but rating of ii.five. My science fair project was very reliable, showing reasonable improvement or non-comeback. The 1 thing I could change is maybe having coins that are the exact dirtiness as other coins. Coins are not only a part of our coin, merely our life. We use them every single day, then why not be nice, and give the coins a nice, cool, lemon juice bath.