Wait for 10 minutes. Students love to collect and bring in a dirty penny for this science experiment. Set one penny aside to act as your control. In this lab, you will be specifically going through the scientific method while performing an experiment using a little chemistry. Gather all materials. Notes Safety Stir until the salt dissolves. Make sure the two water beakers are filled with water. Second: Add separate cabbage leaves or flowers to each jar, with the stalk/stem submerged under the water. You now have a stack containing 4 pennies and 4 nickels, like the stack shown in Figure 8. 3. Prepare the key for copper-plating by cleaning it with a thin layer of toothpaste or soap and water. Leave the pennies in the liquid for 5 minutes. 4. Fill half of one container with one of the six substances referred to in the materials list. What do you see? Experiment: put dirty pennies in acids and watch them become clean I have tried the experiment and it works. Repeat the experiment, but clean counter tops this time. When it is clean and shiny to your liking, flip the penny over, and repeat the same process on the other . Pour just vinegar into the other small bowl. Pour the vinegar onto the paper towels until it is absorbed. Pour the vinegar and salt into one small non-metal bowl and stir to dissolve. 4.) Vinegar. 4. We used about ⅓ cup of vinegar. All you need are pennies, water, dish soap, salt, and vinegar. It's a great option for Presidents' Day, too! All you need are pennies, water, dish soap, salt, and vinegar. Make Slime →. Paper towels. Carefully record each coin's condition prior to placing it into its cup. Let it cool. Put 3 pennies into the bowl for about 30 seconds. While holding the penny on a flat, stable surface with one hand, use the pencil eraser to rub the dirt and brown oxidation off of the penny using a small circular motion. If I put a copper penny in soap and water, lemon juice, vinegar and salt, coca cola, or ketchup, then vinegar and salt will clean the copper penny the best because it has the most acid. Mix together 3.0 grams of sodium chloride and 15 ml of vinegar in a clean, 100 ml beaker. 1.Rip a paper towel to fit into your small containers and line the bottoms. Solutions: Soap and water Coke Ketchup Vinegar Water Dry with a towel. STEP2 - Pour out a glass of your cola. $1.95. Take a photo of them with a piece of white paper as the background. Make a bar graph of your results. STEP5 - Sit back and wait but you should be able to see a difference in the . an the penny was getting cleaner an then we waited another 5 min.to see what will happen the when we waited it was clean like a brand new penny was just used. Next, pour one liquid into each cup. What did happen is that the higher the acidic solution was, the darker the pennies became. Record how much each solution cleaned the pennies on the data table. Q. Students record observations on the Clean Pennies data sheet. The experiment that I have chosen to research and experiment on was which is the proper way to clean or remove deposits from a . PDF. Make Ice Cream in a Ziplock Bag →. The standard format for these types of reports includes an abstract, introduction, materials and methods, results, and an analysis or discussion section. Purpose. Gather materials and make copies of the Wet Pennies Handout. To clean the copper pennies, place them in the sodium chloride/vinegar solution until they are shiny. After a few minutes, take out half of the pennies and lay them on a paper towel to dry. Third: Leave your cabbage leaves over night. 5 th Grade Science Fair Project. Pennies get dull over time because the . Viscosity depends on the size and shape of the particles that make the liquid, as well as the attraction between the particles. Make sure you keep track of from which cup they came. Put pennies in each solution to see which one does the best job of cleaning the pennies. 5/05/2010 1:39 PM Scientific Question: which of the four ingredients will have the capacity of cleaning the pennies better? Add the pennies. hey. Science Procedure: Pour vinegar into the jar - about half way or so! When the Penny Drops. Place a penny on a flat surface and record the number of water drops that can be added to the top of the penny before the water spills over. Clean a Dirty Penny Science Experiment. The Scientific Method and Chemistry Biology is a science. Phosphoric acid breaks down the copper oxygen compound and causes a new layer of the copper to be exposed. After creating a volcano science project, it's important to write a clear presentation. Wait at least ten minutes. Grab a can of Coke, an empty jar, and one delicate egg. If you need help calculating an average, ask an adult for help. Do this by adding the values for the three trials and then dividing by 3. Make sure you use enough to wet the entire paper towel. Then, put 2 pennies in each of the solutions and let them sit for one hour. A questionable aspect of this experiment is arisen with the change of the color of ammonia during the experiment. In the second cup, put water mixed with dish soap. Be sure to remove as much residue as possible - without using soap! Next, comes the toughest part of this science experiment - the waiting. Jessica McBrayer did an experiment on cleaning pennies using a solution of ¼ cup white vinegar, and 1 teaspoon salt. Place your flowers in the liquid and wait 24 hours. For this experiment, you only need a few simple supplies. A unique property of liquids is something called viscosity. Students love to collect and bring in a dirty penny for this science experiment. . Write the name of each liquid on a strip of paper and put one strip beside the cup to mark it. First, lay your dirty penny on top of a piece of paper or clean cloth. For example, if your values for the plain tap water were 0.7 mL, 0.9 mL, and 0.95 mL, the average would be (0.7 + 0.9 + 0.95) ÷ 3 = 0.85 mL. Gently remove the egg from the jar and examine what the soda has done . we put the pennies in the dish an then we poured the vinegar on top of the penny. 1. Water. Before bed, come back to your experiment and flip the pennies over. Compare all three pennies. Remove the penny from the liquid. Hold the medicine dropper just above the top of the penny (not touching it . Take the second half and clean them with soap very well. Repeat step 9 for your new stack. 3.) Read the book together, talk about the cool facts, observe the coins, and sort them. Paper towels. With our question formed and guesses made, it was time for the simple science experiment. The goal of this experiment (as outlined) is to determine if soapy water or ketchup will clean pennies more efficiently. Interest: I have a science fair and this project seemed very interesting because I have a lot of pennies (about $10.00 worth) that are dirty. PDF. In the first cup, put plain water. Cleaning Pennies The project that I made, consisted in cleaning up old and dirty pennies. Look how much cleaner it is! 3. Label the cups. grape juice,200 ml cup of orange juice,200 ml of pineapple juice, 1 measuring cup, 5 dirty pennies, 200 ml cup of apple juice, 200 ml cup of tomato juice. Dip a penny halfway into the liquid and hold it there for 10-20 seconds. Our Conclusion. Pennies in apple cider vinegar turned black November 27, 2016. Rinse the pennies with tap water and place them on some dry paper towels. Take out the pennies and rinse them with fresh water. Conclusion • My hypothesis that the cola would clean the penny the best was incorrect. Salt. For this experiment, you only need a few simple supplies. A clear, shallow bowl (not metal) 2 clean steel nails. Fill the medicine dropper with water. Pour a few ounces of vinegar into a shallow dish. STEP4 - Pop your coins into your glass of coke. People say that ketchup and taco sauce are good cleaners for pennies, but read the ingredients: "Tomatoes, Vinegar, Salt . Soak your pennies in ketchup to clean them like new. This Corrosiveness of Soda experiment only proves and supports ADA's position on the said issue. Hypothesis: If I put a copper penny in coca cola, soap and water, ketchup, white vinegar, and salt and vinegar will clean the copper penny the best because the vinegar and salt has the most acid.. The pennies will need a chemical reaction to make them shiny again! Select a dish with an opening wide enough to allow you to reach in and grab the coins. Remove the penny from heat as soon as it changes color. Pennies made after 1982 are made from copper and zinc, so the reaction is less. Results Best to worst: • banana pepper juice • kosher dill pickle juice • grapefruit juice • cola • coffee. 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. The soda cleans the pennies because it contains phosphoric acid. 2. Well, after you wash the ketchup off, that is. What do you see? Place the penny (tails side up) on a . Coke. Washing pennies with water is a physical change. Remove the pennies, rinse them in water, and rub them with a paper towel. water, rubbing alcohol, and vegetable oil). The pennies will be cleaner and brighter than before. Dry the pennies with a paper towel. For each liquid, use about 2 ounces (about one-half inch of liquid height). Store the jar in a safe place for one day. Conclusion: The hypothesis was proven true, and the pennies, were best cleaned by the strongest acid, which in this experiment was lemon juice. Remove the penny from the liquid. Pour just vinegar into the other small bowl. , and 1 camera. We can change the experiment by adding lemons instead of oranges or we could have used more salt which probably have cleaned it better. Students discover which cleaning solution works best to clean it and why using the scientific method! We tried using gel colors and they did not absorb nearly as well as the liquid, even though the water was colored. This means we use the scientific method to answer questions. Students discover which cleaning solution works best to clean it and why using the scientific method! Put the coins into the bowl for about 5 minutes. In fact, the cola was in 4th place as a cleaner. IV) Test/Experiment. Students should also be able to identify if this change is chemical or physical. Place a penny in it and cover the penny with ketchup. Once twenty four hours have passed, open the jar and pour the soda into a bowl slowly, leaving the egg in the jar. Dip one penny halfway into the liquid. Description. Since we have 6 different liquids here, it's best to properly label each cup. Rinse the penny in tap water and dry completely. Materials. Soap and water won't clean the pennies because oxidation is a chemical change. She took some pennies out of the solution and rinsed them, and took the rest of the pennies out and did not rinse them. Remove the other pennies and rinse them with water before letting them dry. This is whyafter reading about the experiment I wanted to find out why the pennies are cleaned. Results. In the other cup, pour enough liquid soap to cover the penny. The American Dental Association or the ADA has warned people that too much soda could damage their teeth particularly their tooth enamel. A clean steel screw or bolt. Grasp a silver penny with tongs. Create a Lemon Battery →. 2.) Place your pennies in each small bowl. Remove the pennies and rinse them thoroughly with water. Place your pennies in each small bowl. Make a note of the color of each. Penny Change Experiment Instructions Part 1 - Dull to Shiny Pour the vinegar and salt into the small non-metal bowl and stir to dissolve. Conduct an Experiment. 4 Ask yourself Ask yourself what might clean the copper oxide. Viscosity is a liquid's resistance to flowing. Proceed to 'Instant Verdigris!'. You need: Pennies; Water; Droppers; The first of our experiments is the simplest, and one of the most fascinating for students. Dump the rest of the pennies into the liquid. Take half the pennies out and place them on a paper towel. Before the Activity. After one hour take the pennies out and rinse them. Wait for about 5-10 minutes. The clean penny held more than the dirty penny. Gently heat the penny in the outer (cool) part of a burner flame or with a lighter or candle (or even set it on a hotplate). Then, they added one of the liquids to each glass. Line them up in order according to the dates on the penny. The pennies are made of copper atoms, but sometimes the copper atoms combine with other atoms to make molecules. Label 5 paper towels (1) soap and water (2) Lemon Juice (3) vinegar and salt (4) coca cola (5) Ketchup. 2. Pour the contents of the Water 1 cup into the Water 2 cup, catching the pennies with the strainer. Write your answers down on the science page and compare the results with your hypothesis. If i use ketchup, Coca cola, bleach, lemon juice, vinegar, and soap+water to clean a penny then coke will clean the penny the best after two hours. Kitchen Science with over 50 Fantastic Experiments, by Chris Maynard (DK Publishing); ISBN -7894-6972-3; Background for Teachers. Do not handle the clean pennies with your hands. Dip a penny halfway into the liquid and hold it there for 10-20 seconds. This was a quick fun little experiment to do. The pennies have become tarnished as the copper coating reacts with oxygen in the air and forms a copper oxygen compound, which makes the pennies appear brown. 7. Salt. Supplies. This is an instruction and recording sheet for our penny experiment. $4.50. Make a Lava Lamp →. Step 2: Hold the penny with the tweezers provided, then dip it into the TESTING LIQUID. 2. Procedures. How to Make the Silver Pennies Turn Gold. MATERIALS : 5 small glass cups, 200 ml cup of. A bowl will work best, but you could also use a coffee mug or small Tupperware container. In one cup, pour enough vinegar to cover the penny. 2 teaspoons salt. . Experimental Procedure: 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).

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