pennies cleaning science experiment conclusion

This takes more work than the others, however. She's worked as a freelance copywriter and fiction writer for over a decade. Take the dirty copper pennies (the ones from the bottom of your purse are best) and have your child place one into each cup. Step 3: Dump all the pennies into the liquid. Can you clearly see the date on the penny, or is it too dirty? Plus, there is another great reason to try this science experiment out youll be spending some quality time with your kids. Try more solutions. We laid our pennies out to look at them and were surprised with the results. So we proceeded to read the other ingredients and guess what we found? Use your paper and pencil to create a table like the one below. If using bowls or Tupperware, write your label on clear plastic tape and gently attach it. Younger kids might need a bit of help. The oxygen in the air and the copper in the pennies form an oxide that coats the pennies and makes them look dirty. Encourage this and get them to write down their supposed answers. All you need is a couple of old copper coins, some different liquids and a few other tools. And the best example of this reaction is the Statue of Liberty. Well, heres something even more fascinating. Cleaning Pennies Science Project.docx - Course Hero Which is the least clean? When you are done with this fun experiment, check outMaking Pennies Green. 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. Place a penny on each square of your table, heads side up. (You may need to push the one in the catsup to get it fully submerged). You may print and distribute up to 200 copies of this document annually, at no charge, for personal and classroom educational use. Make sure you stay with your kids during this part and engage with them. As we have seen experimentally, acid alone does not clean as well as acid and salt. It was originally a dark brown color because it was made out of copper and over many years, it has slowly turned blue-green because the copper has transformed into malachite! 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. Once the budding scientist has a pile of pennies, he or she should choose and collect their selection of cleaning solutions. Here is a step by step walkthrough of the experiment so you dont get forget what to do or lose track of where you are: Once this is all done, you may be tempted to clean everything but not yet! Over time, pennies form a layer of copper oxide on the surface of the penny, which actually protects it from further corruption. Put 1 tablespoon Ketchup into each Ketchup cup. Now closely look at each coin. Not only will you be improving them as an individual, you will also be strengthening the bond you share together. Thats Chemistry in action for you! Begin by pouring the vinegar into the bowl. It appears, the salt breaks down somewhat, freeing chlorine ions into the solution. Just click on the image to find more science fun. In the second cup, put water mixed with dish soap. Begin the experiment by placing a few pennies on a small plate. Therefore, acids are the best kind of liquid to use to clean coins as it easily dissolves the copper oxide that coats old coins and makes them look new and shiny again. Since we have 6 different liquids here, its best to properly label each cup. Extra: Test whether these cleaning solutions work on other types of coins. Remember, you will be working with only the vinegar salt mixture and the catsup. Wet a toothbrush and begin scrubbing the penny. Conclusions - Cleaning Pennies Cleaning Pennies Home The project that I made, consisted in cleaning up old and dirty pennies. Problem & Hypothesis - Cleaning Copper Pennies - Google Sites Pop another coin in both the ketchup and vinegar and salt mixture. This dirt is actually copper oxide. Wait at least two minutes before rinsing the pennies. 12-Page Colour Download: Put pennies in each solution to see which one does the best job of cleaning the pennies. If you dont have a camera, look closely at the color of each penny. Cleaning Coins Experiment [Procedure And Explanation] Oxygen in the atmosphere has a negative charge that is attracted to the positive charge of the copper in the penny. Cleaning Penny Experiment Teaching Resources | Teachers Pay Teachers Why do you think this might be? After a few minutes, remove the pennies from the bowl, and rinse them with water. If you continue to use this site we will assume that you are happy with it. I LOVE teaching! Conclusions - Cleaning Pennies In the third cup, put 1/2 cup vinegar and 2 teaspoons of salt. So, the liquids that have worked best in your experiment are the ones that are more acidic. Place a penny in it and cover the penny with ketchup. Hot Sauce Hot sauce, like Tabasco or taco sauce, also will remove the oxides off pennies. Always happy to help! This is a weak acid, which is good since we ingest it. 2023 LoveToKnow Media. Once all the pennies are in the correct cup, use the remaining time to observe the pennies, and the contents of the cup. i need to know!!! This is why most pennies you see look dirty or tarnished, its not actually dirt, but copper-oxide that makes them look so dull. (Glass Or Cup) Upside Down Water Experiment : An Amazing Science Trick! If you are looking for a fun and engaging way to keep kids passionate about learning, check out Groovy Lab in a Box. Compare all of the pennies to the control pennies. The answer is pretty simple before 1982, pennies were made almost entirely from copper, and modern pennies are made of copper-plated zinc. The pennies will be cleaner and brighter than before. Recently, we did thisCleaning Pennies Experimentand the results were surprising to my kids. Hi! Thank you for sharing! The acids (usually vinegar - acetic acid) break the copper oxide free from the penny. And it even had added acetic acid! The Best Science Kits for 5 Year Olds That Teach STEM in a Fun Way, The Best Science Kits for 4 Year Olds That Teach Basic Science Concepts Really Well, The Best Science Kits for 3 Year Olds (What to Buy and What to Avoid), The Best Gifts For 10 Year Old Girls Who Are Awesome and Ready to Change the World, Best Science Kits For 8-Year-Olds to 10-Year-Olds, Water Pressure Rocket Toy: 4M Water Rocket Kit Review. Thats great to know Aayeshi. also after an hour of the salt and vinegar, the salt made the coin super duper weird and worse. The pennies get shiny because the copper oxide is being stripped off by a reaction, which results in increasing levels of copper in the liquid. Continue to place each penny in the 5 minutes column in its corresponding cup. Acids vs. Bases: Cleaning Pennies Experiment - Scientific AmeriKen Science - Lesson 5 of 50 - Grades 4,5,6 So, the results of your kids coin cleaning experiment should be that the ketchup and the vinegar and salt mixture were the best coin cleaners. Step 4: What happens? Cleaning Pennies Science Experiment for Kids. Reviewed & Fact Checked byRebecca Carlock. Water from the tap is fine. Sometimes, all you need is some glue, some baking soda or a few old pennies. Once 5 minutes has passed, rinse each cup with water until the inside of the cup and the pennies are clean (be careful not to lose your penny!). 'Fire Water Balloon, ' link: However, over time, they turn dull and dark. It can be done relatively quickly and with multiple ages. Rank your solutions from which cleaned the penny the best, to which cleaned it the worst. This outlines all of the steps of scientific investigation. Cover the pennies with taco sauce, spreading the sauce over the pennies until they are completely covered. Place your pennies in a shallow bowl, and cover them with lemon juice. You can dispose of any extra ketchup how you normally would. Kids are given some background on chemical reactions and oxidation. Write the name of each liquid on a strip of paper and put one strip beside the cup to mark it. Great for President's Day! This way, you wont mix up the coins when it comes to comparing them. Thanks for sharing! Now when you dipped it into the salt + vinegar solution and then air-dried it, it also took with it some chlorine which is often found in salt. (we used our hands very messy business especially with the catsup but the kids thought that was fun!) The following titles name the 20, /activities.Shake It! of salt and a bowl, preferably metal. 'Balloon Powered Rocket, that looks at what house hold solutions will be best to. When 1 minute has passed, rinse each cup with water until the inside of the cup and the pennies are clean (be careful not to lose your penny!). The statue ismade of copper and it has turned bluish-green because of this copper-oxygen-chlorine reaction. Afterwards, put one old coin in each cup. If this experiment is being used for a science fair or class presentation, the young scientist has the option to either take photos of each penny with a label for which solution was used or even to bring the pennies themselves in. The chemical reaction that dissolves the copper oxide on your pennies is an ongoing process. The young scientist tries to find out which of several solutions will clean pennies best, eliminating the copper oxide that gives the surface a dull and tarnished appearance. (Dont believe me? And be sure to share these additional fun learning activities with your kids! Science - Lesson 2 of 50 - Grades 4,5,6 And so, these two liquids are the most acidic and therefore, the best coin cleaners! To make it a true experiment, you can try to answer these . Begin your control experiment. Do you notice any changes in the appearance of the pennies? Next, drop in a dirty penny and stir. Record this number on your data table under trial 1. Put a dollop of ketchup on a plate. Pour cup of baking soda into one of your plastic cups. Its exactly the same reaction thats happening to the dearly beloved Statue of Liberty! Follow us on Facebook, Twitter or Instagramto see new experiments! Phosphoric acid breaks down the copper oxygen compound and causes a new layer of the copper to be exposed. There is a second stage to this experiment that you can also try out, and the only extra materials you will need is two more old pennies and some more paper towels. Sign up to learn about our special events, clubs, camps, promotions and school programs. Here are the scientific method steps and some sample questions to help you work through it. How do they smell? It also helps them practice graphing, determining independent and dependent variables, and analyzing experimental results. 2 teaspoons salt. Penny Cleaning Experiment Teaching Resources | TPT - TeachersPayTeachers Privacy. Its that dull dark. I needed a quick science activity. We use cookies and those of third party providers to deliver the best possible web experience and to compile statistics. You simply add salt to vinegar and you end up making an even more acidic concoction? Want to wow your kids with some simple kitchen science? After quite some time, or after exposure to an acid, pennies will formcopper sulfate, carbonate, and chloride salts, which gives pennies a green color. Toasted Italian Sandwich - Food Fun Friday. Experiment with even longer periods of time with each of the cleaning methods. Clean Pennies - Utah Education Network Notify me of follow-up comments by email. Place each of the pennies in the 1 minute column into their corresponding cup. My goal is to encourage moms, find practical parenting solutions, and help moms with the unique challenges twins bring! All rights reserved. 10 very dirty pennies (the dirtier the better! But we think that that alone could not clean coins this quickly. Taco Sauce Penny Cleaner - Steve Spangler Drop eight to ten of the dirty pennies into the solution. Add the salt, and stir until the salt is completely dissolved. So we did a little experiment to see what would actually happen. by Brenda Priddy | Jul 12, 2017 | Homeschool |. . What do your results tell you about the special properties of copper pennies? You also may have noticed that the longer the pennies stayed in the cleaning solution, the cleaner they became! Step 1 Fill a glass cup with vinegar and pour it in a non-metallic bowl. And don't worry, I give the science behind it all! I attached a "rainbow" of, glue dots, and passed it around the room. Science isnt a one and done thing. So what just happened here? Explore this article things needed 1 Preparation 2 Collect pennies of varying color Collect pennies of varying color. Do not add anything to the cup. Curious about the science? Grab a cup of coffee, some of that chocolate youre hiding from the kids, and join me as I learn, experiment, and explore with my kiddos and hopefully inspire you a little in your journey alongside smart, quirky, creative kids, too! Now comes the hardest part of the experiment - the waiting. The salt and acetic acid in vinegar do the trick. Analysis and Graph - Cleaning Pennies Wash your hands. Place the penny (tails side up) on a flat surface. The salt in the ketchup adds dissolved chloride ions that bond with the copper to form copper chloride, which allows the acid to break up even more copper oxide. They look brown or black, and sometimes theyre so dirty looking that you cant even tell whether theyre pennies! Cleaning Pennies Science Experiment for Kids - Raising Lifelong Learners As an Amazon Associate I earn from qualifying purchases. 3. Put 1 tablespoon Tabasco into each Tabasco cup. None of our pennies were dull anymore, and some were downright shiny! Use your permanent marker to label your remaining plastic cups like this: Ketchup 1, Ketchup 5, Tabasco 1, Tabasco 5, Vinegar 1, Vinegar 5, Lemon 1, Lemon 5, Control 1, Control 5. If you want things to be fun and messy, you can always have your kids use their hands as long as you are happy to deal with the consequences of ketchup-coated fingers! Penny Cleaning Science Fair Project for Eighth-Graders Make a paste from your baking soda and water. Here is how to set up your cleaning pennies experiment. The acid in ketchup is acetic acid, commonly known as vinegar. Simple, any age students! This website is helpful to me but,add more steps and I think it can be more helpful. 2 or More Additional Solutions. There is a second stage to this experiment that you can also try out while you are talking to your kids about their results from the first stage. Science - Lesson 3 of 50 - Grades 4,5,6 Start by placing the Ketchup, 5 minutes penny into the cup labeled Ketchup 5. Find out! Science Experiment With Cleaning Pennies Teaching Resources | TPT As in ketchup, salt and vinegar . Students should also be able to identify if this change is chemical or physical. Deidre is an avid writer with a Bachelor of Arts in Literature. Which one is the cleanest? *Note: This activity works best if you use 10 pennies that are equally dirty. In this fun and easy kitchen science experiment for kids, we're going to use a chemical reaction to clean pennies. Wipe the penny off with a paper towel and rinse off. Step by Step Procedure: There are two different stages to this Science activity. CokeCoke and off-brand colas will quickly remove the tarnish. You dont have to do the 2nd one, but its also a good scientific experiment and youll even find out why the Statue of Liberty is the color that it is. This is your control. I have included 4 recording sheets to go along. Penny Cleaning Science Project | LoveToKnow Copper oxide is the dull dark color that covers old coins the older a copper coin is, the more copper oxide it has coating its surface. When the oxygen and the copper on the coins' outsides interact, a substance called copper oxide is formed. I'm giving you a shout out on the post. The cookie settings on this website are set to "allow cookies" to give you the best browsing experience possible. When copper reacts with oxygen and chlorine, it turns blue-green instead! 'Balloon Powered Rocket, - Lesson 2 of 50 - Grades 4,5,6 If you have older kids, you can let them pour the soda. Experiments on Cleaning Pennies | Sciencing Cleaning Pennies Experiment - Mess for Less The reason why ketchup is such a good coin cleaner is because it is made from tomatoes, and tomatoes are an acidic vegetable (yes, tomatoes are a vegetable). Whether you've got toddlers or grandparents to entertain, family nights are the p, Antique Christmas Houses for a Victorian Village Display, From sitting on brick firework mantles to placed underneath genuine fir Christmas trees, people have been displaying their ceramic or plastic holiday town scenes for decades. But what about the ketchup? Science Fair Project Ideas for Kids, Middle & High School Students, Science Bob: Cleaning Pennies With Vinegar, Steve Spangler Science: Taco Sauce Penny Cleaner, Miami Museum of Science: The pH Factor/Cleaning Pennies. How do they feel? ), 20 Best Sensory Tables Ideas for Toddlers and Pre-Schoolers, Science Fair For Kids: The Battle of the Senses (Taste vs., solutions like ketchup and the salt and vinegar mixture, https://www.youtube.com/watch?v=WhAgQEr1LOE, Can Ketchup Clean a Penny? Students will practice NGSS skills such as asking questions, planning and carrying out an investigation, and analyzing and interpreting data. Your email address will not be published. Copper oxide is blackish. The acid in vinegar, like in citrus, is what really takes the tarnish away. Penny lab experiment conclusion. Cleaning Coins Experiment [Procedure And Explanation] - Gally Kids We would recommend you use any liquids from the following list for the best results: Now, you can get to the fun part carrying out the experiment! Ketchup is a weak acid (from the vinegar), and this acid breaks down the copper oxide. Ketchup. For any other use, please contact Science Buddies. Pour enough of each solution into its corresponding dish to cover the pennies (it doesn't take much). Based in Los Angeles, Bridgett Michele Lawrence began working as a freelance writer in 2008. Pre-made digital activities. If you line up your pennies in order from the dirtiest to the cleanest, the order should go something like this: Water, Soda/Fruit Juice, Vinegar, Ketchup, and Vinegar and salt mixture. Take the pennies out one at a time and, keeping track of which penny is which, rinse each one off. Whether you need help solving quadratic equations, inspiration for the upcoming science fair or the latest update on a major storm, Sciencing is here to help. What is the optimal time to leave the pennies in the cleaning solution? Well, after you wash the ketchup off, that is. Kids are naturally curious, and as their parent or guardian, you will want to encourage that as they grow older. This is easy for the water and other thin liquids, but for ketchup or mustard, you need to flip the penny around to be sure it is coated. Note: Some of the links on this page are affiliate links. By continuing to use the site, you agree to the use of cookies. 9 Easy Grill Cleaning Tips to Keep Mealtime Fresh, At least two of the solutions from the above list, One penny for each solution plus one extra, One small dish or cup for each solution (plastic or paper cups with a couple inches off the top cut off will work if there aren't drinking glasses to spare). Go back to the table you drew. When the penny is clean, remove it, rinse it with fresh water, and set it aside to dry. The step-by-step instructions included in this digital product are easy to follow and are accompanied by colorful illustrations that make the process even more engaging. This is why bright shiny pennies dull with age. Make each cell (square) of the table large enough to place your penny in it after your testing is complete. In each case, make sure the penny is completely covered by the contents of the cup. This means you will only have two cups to work with. Shine Bright Like aPenny! - Scientific American Also after 10 mins none of them got cleaned but after an hour of the ketchup, it was mostly clean. I am a former teacher turned homeschool mom of four kids. The chemistry behind the experiment is simple yet interesting, and the project is easy for children of all ages to do. Pencil EraserUse a common pencil eraser on your pennies to remove the oxides like mistakes on paper. If you have a camera, take a picture of the pennies. Update Includes Google Slides version for distance learning science experime Subjects: Mix until the salt is dissolved (it helps if the vinegar is a little warm). 3 clear cups. Well keep that in mind. Younger kids who cant yet write well can keep the pennies in front of the cups.). Have you ever wondered why some pennies are shiny and some are dull? The child should be prepared to discuss why they think some solutions were more effective than others. 5. I'm a teacher, currently doing distance learning with my students during the school closure and I'm going to use your activity for our Weekly STEM Challenge! My kids had fun doing this, raiding their piggy banks to find some dirty pennies. 4. Great for President's Day! Look how much cleaner it is. Use your paper towels to gently dry off each penny, then place it in the corresponding square of your table. Trust me on this. First, put the coins back into the same mixture as the one you used in the first experiment. Tomatoes contain naturally occurring citric acid, another acid that is generally slightly weaker than vinegar or lemon juice. Science - Lesson 1 of 50 - Grades 4,5,6 After cups are put away, remove goggles. Pennies are good for more than just buying penny candy. . Drop the pennies into the soda. Remember that at the very start, I said you should use only copper coins? Copper oxide dissolves in a mixture of weak acid and table salt. I used this experiment for my science class and my teacher was super impressed. A chemical reaction between the vinegar and the salt removes copper oxide. The lab instructions are easy to follow and provide step-by-step guidance on how to conduct the, 5-IN-1 BUNDLE (Set 1 of 10) - Grades 4,5,6, What is in this '5-IN-1 BUNDLE'? I love coming up with simple and fun learning and STEM activities for kids. Thanks a lot Meriley. It does this by using the low levels of acids that are contained naturally in vinegar and lemon juice to remove the patina (brown oxidation) on the penny. Leave the paper clip in the solution overnight. The 25 Best Wooden Puzzles for Toddlers (Teacher Approved! This will be where you place your coins for comparison. In this lesson, the students will predict why some. You explained the science behind it perfectly. A lot of parents or guardians may initially be switched off to this because they assume you will need fancy kits and equipment but thats not always true. Check the coins, then come back again in another 30 minutes and see what has happened to the coins. Student Write-Up Template and Question Sheet: 5 colour pages Gently wipe off any excess solution with a paper towel. Put one penny in each of the liquids and make sure it's fully submerged. Copper oxide is blackish. HOW TO CLEAN PENNIES| SCIENCE EXPERIMENT - YouTube Let the pennies dry on pieces of paper towel. Add the pennies. Well, after you wash the ketchup off, that is. It is a great sensory STEM activity for preschoolers and older children. After all the pennies have soaked for about five minutes, it is time to pull them out. I use this specifically to teach them the. Rinse and dry the penny. What is changing? For this experiment, you will need dirty pennies, paper towels, 1/4 cup of white vinegar, a tsp. Kids will get all the supplies they need to complete the activities in addition to a cool lab book .Subscribe here. Post your question for our scientists.

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