1. Science Experiment: How to Clean Pennies

    Soak them in the solution for a couple of minutes. Then gently scrub the pennies with a soft-bristled toothbrush. Obviously you'll want to use an old toothbrush. Rinse the coins with warm water and use a soft towel to wipe them dry. Be careful not to create any scratches or abrasions on the surface of the coins as you clean them.

  2. Cleaning Coins

    Fill four cups each one quarter full with each of the six cleaning solutions suggested (4 with lemon juice, 4 with orange juice, 4 with cola, 4 with water, 4 with baking soda paste and 4 with dish liquid). Label the cups. Carefully record each coin's condition prior to placing it into its cup. Place one of each type of coin into each solution.

  3. Cleaning Coins Experiment [Procedure And Explanation]

    Write the name of each liquid on a strip of paper and put one strip beside the cup to mark it. Next, pour one liquid into each cup. So 1st cup will have catsup, 2nd will have coke, and so on. Afterwards, put one old coin in each cup. Leave the coins in the liquid for 10 minutes. (You may need to push the one in the catsup to get it fully ...

  4. Shine Bright Like a….Penny!

    Start a 1 minute timer. Place each of the pennies in the 1 minute column into their corresponding cup. In each case, make sure the penny is completely covered by the contents of the cup. Place your 'Control, 1 minutes' penny into the 'Control 1' cup. Do not add anything to the cup. This is your control.

  5. Cleaning Pennies

    1. Ketchup. 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. 2. Hot Sauce. Hot sauce, like Tabasco or taco sauce, also will remove the oxides off pennies. As in ketchup, salt and vinegar are both in hot sauce.

  6. Cleaning Pennies Science Experiment for Kids

    Paper towels. Create a solution of vinegar and salt using one teaspoon of salt and 1/4 of a cup of vinegar. Mix until the salt is dissolved (it helps if the vinegar is a little warm). Add the pennies. Wait about 5 minutes, then remove the pennies from the solution. Dry the pennies with a paper towel.

  7. Penny Cleaning Experiment

    EXPERIMENT STEPS. Step 1: Pour a couple of inches of Coke or Pepsi (any dark cola will work) in the bottom of a disposable cup. Step 2: Using the permanent marker, mark an X on one side of several of the pennies. Record which pennies that were marked by writing down the year of each penny. Step 3: Drop a few pennies in the bottom of the cup.

  8. Shine Bright Like a...Penny!

    Take the penny from the "Ketchup, 1 Minute" square of your table, and place it in the "Ketchup 1" cup. Gently swirl the cup so the penny is completely covered with ketchup. Start a one ...

  9. How To Clean Pennies

    For each column starting with the first, add in baking soda and water to the penny, nickel, dime and quarter. Do the same for each set of 4 coins in a column- Second column add in vinegar; Third column add in soap and water; Fourth column add in ketchup; and the fifth column add in orange juice. Let the solution sit for at least 30 minutes.

  10. Cleaning Pennies Science Project

    Pour the salt in the bowl. Put 0 tsp in the first bowl,2 tsp in the second one and 4 tsp in the last one. Stir each bowl. Lastly, put one penny on each spoon and drop one penny in each of the bowls at the same time (you might need to get help so you can drop them at the same time). Let the pennies soak overnight and check the next day.

  11. Penny Cleaning Science Project

    Penny cleaning science projects are a popular choice at grade school science fairs - and for good reason. The chemistry behind the experiment is simple yet interesting, and the project is easy for children of all ages to do. The young scientist tries to find out which of several solutions will clean pennies best, eliminating the copper oxide ...

  12. Science Activity: Turn Old Pennies Bright and Shiny!

    Steel is a metal made by combining iron, other metals, and carbon. As you found out when you cleaned your pennies, your mixture of salt and vinegar is really good at dissolving metals and metal oxides. When you put the steel nail in the mixture, some of the iron dissolves. Like the copper atoms, each of the iron atoms that dissolves leaves two ...

  13. PDF Polishing Pennies

    in the table.10. Thoroughly clean the work area an. wash your hands. Rinse the pennies with wa. er, and dry them. Pour all liquids down the drain, and place the other mater. als in the. trash.Try This..Conduct your experiment again, using vinegar mixed with a few sha.


    The vinegar removed some of the copper from the pennies, if there is enough copper in the vinegar, the copper will become attracted by to the metal in the nuts and bolts and they will take on a new copper color - cool. MAKE IT AN EXPERIMENT. The project above is a DEMONSTRATION. To make it a true experiment, you can try to answer these ...

  15. Green Pennies Experiment

    PENNY EXPERIMENT SET UP: STEP 1: Prep the green pennies science experiment by filling 2 small bowls with about 1/4 cup of vinegar and a teaspoon of salt each. Mix thoroughly. STEP 2: Before dropping about 5 pennies into the bowl. Take one and dip it halfway into the bowl. Count to 10 slowly and pull it out.

  16. Cleaning Coins Experiment

    STEP1 - When you're out and about collect up some copper coins. The older and dirtier the better. STEP2 - Pour out a glass of your cola. STEP3 - Cover one side of each coin with Blu-Tac but leave the other side open. STEP4 - Pop your coins into your glass of coke. STEP5 - Sit back and wait but you should be able to see a difference in the ...

  17. Shiny Pennies Trick: A Sparkling Science Experiment for Kids

    Steps to Sparkling Success. Hypothesize: Before you start, have a little brainstorm with your young scientists about which liquid they think will do the best job at cleaning the pennies. Make your guesses based on what you know about each liquid. The Vinegar Cup: Place a penny in one of the paper cups and pour in enough vinegar to completely ...

  18. Cleaning Pennies Experiment

    Drop the pennies into the soda. This is what the pennies look like sitting at the bottom of the glass. Now comes the hardest part of the experiment - the waiting. Let the pennies sit in the soda overnight. Keep it out of reach with a note to be sure no one drinks the soda. The next day, pour the soda out of the glass, careful to leave the pennies.

  19. Dirty Pennies Kitchen Science Experiment

    In this fun and easy kitchen science experiment for kids, we're going to use a chemical reaction to clean pennies. Materials: Dirty pennies Glass Vinegar Salt Measuring spoons Paper towels Instructions: Fill the glass about halfway full with vinegar. Stir in about one teaspoon of salt and mix until it dissolves. Drop eight to ten of the dirty pennies into the solution. After several minutes ...

  20. Clean Coins: A Quick STEM Activity for Preschool

    The girls put 3-4 coins in 4 small glasses. Then, they added one of the liquids to each glass. They took turns pouring the liquids in the glasses - and of course, wore their safety goggles as they poured. They closely observed the glasses to see if they could see any 'science happening'. They noticed bubbles forming on the coins in the ...

  21. 1st Class Science

    Steps: Next we conducted our experiment using these simple steps. Pour water, washing-up liquid, vinegar and cola into one each of the 4 glasses. Fill each glass to the same height. Place some coins into each glass. Use the same size coins. After 15 minutes take the coins out of the glass. Data: When we took our coins out after 15 minutes, we ...

  22. Polishing Pennies

    Materials: Lemon Juice Dirty Pennies A cup Paper Towels Taco Sauce (optional) Instructions: Put a dirty penny in the cup and cover it with lemon juice. Wait about five minutes then remove the penny and wipe it off with a paper towel. Try the taco sauce to see which works better. VIDEO COMING SOON BUT YOU CAN STILL ENJOY THESE AWESOME EXPERIMENTS! How it Works: Pennies are made out of a metal ...

  23. Science Projects on Cleaning a Penny

    Science Projects on Cleaning a Penny. Everyone has seen dirty, tarnished pennies. The oxygen in the air and the copper in the pennies form an oxide that coats the pennies and makes them look dirty. For some quick at-home science experiments, there are a number of different methods you can use to clean your penny collection.