What cleans a penny the best science fair project?

For some quick at-home science experiments, there are a number of different methods you can use to clean your penny collection.

  • Ketchup. Soak your pennies in ketchup to clean them like new.
  • Hot Sauce.
  • Coke.
  • Citrus Juice.
  • Pencil Eraser.
  • Vinegar and Salt.
  • Also to know is, why is hot sauce good at cleaning pennies?

    Soak your pennies in ketchup to clean them like new. Well, after you wash the ketchup off, that is. The salt and acetic acid in vinegar do the trick. Hot sauce, like Tabasco or taco sauce, also will remove the oxides off pennies.

    What cleans pennies?

    Copper oxide dissolves in a mixture of weak acid and table salt-and vinegar is an acid. You could also clean your pennies with salt and lemon juice or orange juice, because those juices are acids, too.

    What cleans a penny the best?

    You can “clean” a penny a little bit and very slowly with lemon juice or vinegar (mild acids), but put a dash of salt in the lemon juice and the penny will turn orange with a quick rub. People say that ketchup and taco sauce are good cleaners for pennies, but read the ingredients: “Tomatoes, Vinegar, Salt . . . “

    Can you clean coins without losing value?

    Avoid such coin cleaning products at all costs. Even a modern clad coin cleaned with one of these products will lose value. A weak soap (not detergent) solution in distilled water will remove dirt and grease from an encrusted coin without damaging it, even if the coin is one of those grimy specimens found at the beach.

    How does taco sauce clean a penny?

    The clear winner is the mixture of vinegar and salt. By themselves, the salt and vinegar do very little in the way of removing the coating of copper oxide on the penny, but together these ingredients make a great cleaning agent. So, the secret in taco sauce is the combination of the ingredients.

    How do I clean a penny?

    The use of vinegar and salt to clean pennies goes way back. It works on the same principle as using ketchup (Ketchup contains vinegar, salt and tomatoes), but there is less rubbing involved. Mix up a concoction of vinegar and salt. Stir it around to dissolve the salt and then dump in your dirty pennies.

    What kind of juice will clean a penny best?

    Some juices will have almost no effect on pennies, while others will clean off the copper oxide completely, revealing a shiny penny that looks just like new. More basic juices include grape juice and apple juice. At the acidic end are tomato juice, grapefruit juice, orange juice, lime juice and lemon juice.

    How do you clean a copper penny?

    For many pennies, one tablespoon (15 g) of salt in 1/2 cup (4 oz) of vinegar will get the job done. Stir the mixture to dissolve the salt. If you don’t have vinegar, use lemon or even orange juice. Copper oxide (the gunk on your pennies) dissolves in weak acid, and that’s just what all three of these liquids are.

    What is the best liquid to clean a penny?

    If I use Ketchup, Coke, Lemon Juice, and vinegar to clean a penny. I think the coke will clean the penny the best after 2 hours. Lemon Juice is very acidic because it has the highest concentration of citric acid out of all the fruits. The acids in the Lemon juice will remove the dirt and grime off from the penny.

    How do you clean coins that have oxidized?

    To remove the oxidation from copper pennies, pour about a quarter cup of white vinegar in a glass or plastic bowl and mix in about a teaspoon of salt. Stir it up till the salt is dissolved, and then toss in your pennies.

    Why do coins become tarnished?

    Tarnish is a chemical reaction that occurs when silver comes into contact with humidity and chemicals in the air which causes silver to lose its beautiful luster. When the atoms of silver come into contact with oxygen, a layer of silver oxide is created as a protective barrier – much like rust.

    What makes pennies shiny?

    Pour the vinegar into the bowl and add the salt – stir it up. Put about 5 pennies into the bowl and count to 10 slowly. Take out the pennies and rinse them out in some water. Admire their shininess!

    How do you clean a silver coin?

    To clean this coin, make a watery paste of baking soda and water in a small container. Dip the entire coin in the paste, then rub both sides with your thumb and index finger for a minute or so. Rinse with water and wipe dry with a soft cloth. l repeated this about three times to achieve the results you see above.

    Why does a penny turn green?

    A chemical reaction has occurred! (A chemical reaction is the combination of two reactants to form something entirely new.) A penny is made of copper. The vinegar on the paper towel helps the copper in the penny easily react with the oxygen in the air to form a blue-green colored compound called malachite.

    How do you clean a penny with lemon juice?


  • Check with a grown-up before you begin.
  • Put a penny in a paper cup.
  • Pour some lemon juice into the cup. Make sure the penny is completely covered.
  • After about 5 minutes, take the penny out of the lemon juice, rub it off with a paper towel.
  • A new penny is partly made from bright, shiny copper.
  • Why do pennies get tarnished?

    When a penny is exposed to oxygen in the air, the copper atoms of the penny and the oxygen atoms in the air combine. A chemical reaction takes place that makes a molecule called copper oxide – that is the dirty stuff that you see on the penny. This “stuff” is often referred to as “tarnish.”

    How do you clean a quarter?

    Fill a small, glass bowl with 1 cup (240 milliliters) of white vinegar and 2 tablespoons of salt. Stir the solution to mix, then add the quarters. Leave the quarters there for several hours to overnight. When they are clean, take them out and rinse them off using distilled water.

    Can you use vinegar to clean coins?

    For this method, you will need dull uncleaned pennies, 1/4 cup of white vinegar, 1 or 2 teaspoons of salt, and a bowl. Put the salt into the bowl. Next, pour in vinegar and stir until the salt dissolves. Finally, dip a penny into the solution and hold it there for about 20 seconds.

    How do I clean old copper coins?

    Method 1 Using Simple Washing

  • Sort your coins. Before you begin cleaning, sort through the coins to determine which coins need the most work.
  • Be patient. It will take time to clean your ancient coins.
  • Soak in water. Place your coins in distilled water.
  • Use soap and water.
  • Soak in olive oil.
  • How do I clean a bronze ring?

    Removing Bronze Patina Using Lemon Juice. To clean the patina on your bronze jewelry, start by washing it with warm water to remove any dirt, and then dry the piece. Take a small bowl, and put 2-3 tablespoons of baking soda in it. Pour a little lemon juice, and mix it with the soda until you make a paste.

    Why does vinegar work as a cleaner?

    Vinegar’s acidity is what makes it such a good cleaner. Because vinegar is so acidic, it can counteract some icky buildups. It can dissolve away soap scum, brines left by hard water, and glue left behind by stickers. A paste of vinegar and baking soda can dissolve set red wine stains.

    How do you clean a green penny?

    To clean about two dozen, stir ¼ cup of white vinegar and 1 teaspoon of salt until the salt dissolves in a non-metallic bowl. Soak the pennies in the mixture for five minutes. Rise really well under running water and place on a paper towel to dry. Another method requires a pencil with a fairly pliable eraser.

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