This product is designed to teach people how to clean old, tarnished, using simple household items such as vinegar and salt. One of my daughters thought that the pennies would get dissolved while my other daughter thought the soda would make the pennies dirtier. Different brands of Ketchup and Tabasco or hot sauce will have different amounts of salt and acid in their ingredients, so your results may be different than someone else doing this activity at their house. And the best example of this reaction is the Statue of Liberty. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); This site uses Akismet to reduce spam. 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. Teacher Notes: Student Write-Up Sample: 1 colour page In this activity, were going to test a few different methods for cleaning pennies, and determine which gets our pennies the cleanest. This is why bright shiny pennies dull with age. Place the penny (tails side up) on a flat surface. Penny cleaning science projects are a popular choice at grade school science fairs - and for good reason. Explore this article things needed 1 Preparation 2 Collect pennies of varying color Collect pennies of varying color. The answer is pretty simple before 1982, pennies were made almost entirely from copper, and modern pennies are made of copper-plated zinc. We had a blast, a physical example of chemical weathering, by looking at how the soda coke (or a generic version), . After several minutes . The 25 Best Wooden Puzzles for Toddlers (Teacher Approved! You can only guess how highly acidic this ketchup must be! Great for President's Day! The statue ismade of copper and it has turned bluish-green because of this copper-oxygen-chlorine reaction. Her articles appear on the Sixth Wall and other websites. Remember that copper turns dark brown when reacting with oxygen? TPT empowers educators to teach at their best. All rights reserved. As you are drying them, you'll notice that rubbing results in some of the dirt coming off the pennies. You simply place a, in three types of solutions, I chose water, soap/water, and salt/vinegar but you can change the solutions if you like (the sheet is editable). Drop eight to ten of the dirty pennies into the solution. All pennies start out the same color beautiful and bright copper. This will allow you to make a better judgment of how well each method cleaned, by looking at the pennies before and after their treatment. . Required fields are marked *. So, the acetic acid in vinegar dissolves the copper oxide and cleans it. Conclusion: The hypothesis was proven true, and the pennies, were best cleaned by the strongest acid, which in this experiment was lemon juice. But still fun expiriment!! But we think that that alone could not clean coins this quickly. Wipe the coins dry with their paper towels and compare them. Leaving your pennies in the cleaning solution longer gives the reaction more time to continue, and gives you shinier pennies! And also, dont forget to Subscribe to our channel for more fun kids activities. In this activity were going to explore why pennies dont stay bright and shiny, and test different methods to bring the shine back! 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. 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. Pour a small amount of each solution you chose into a cup. 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! This experiment can be performed with things generally found around the house, so it's a great choice for even a quick rainy day project. You may print and distribute up to 200 copies of this document annually, at no charge, for personal and classroom educational use. Student Write-Up Template and Question Sheet: 5 colour pages The oxygen in the air and the copper in the pennies form an oxide that coats the pennies and makes them look dirty. Repeat step 4 two more times. Which penny is the cleanest, compared to its before picture? Sign up to learn about our special events, clubs, camps, promotions and school programs. Seven Layer Density Column Science Experiment, Exploding Popsicle Stick Bomb Tutorial An Energy Experiment For Kids. Put 1 tablespoon of Lemon Juice and 1 teaspoon of salt into each Lemon cup. Since most pennies made after 1982 are made out of zinc with a thin copper coating, you used real copper pennies to get the true effect. 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. 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. (Glass Or Cup) Upside Down Water Experiment : An Amazing Science Trick! Have additional paper towels available to wipe off any remaining solution from the pennies. Citric acid works similarly to the other acids. What works best to do this is an acid combined with salt. Afterwards, put one old coin in each cup. Carefully remove each penny from its solution. As we have seen experimentally, acid alone does not clean as well as acid and salt. We know that its mostly tomatoes a quite acidic vegetable. If you took a picture in Step 1, go back and compare each pennys cleanliness before and after being cleaned. In time, however, they get darker, brownish and dull. This will help them to get thinking about the subject and soon, they will start to come up with their own questions. Put one penny in each of the liquids and make sure it's fully submerged. What is the optimal time to leave the pennies in the cleaning solution? ', ' link: For example, ask them if they know you can clean pennies, why you should clean pennies, and what would be the best thing to use to clean pennies? Place the pennies in the bowl, and allow them to sit for several minutes. A teacher's notes page explains how to use, 50-IN-1 BUNDLE (Set 1 of 1) - Grades 4,5,6, What is in this '50-IN-1 BUNDLE'? So there you go, thats how it cleaned the coins too. Cover the pennies with taco sauce, spreading the sauce over the pennies until they are completely covered. To make it a true experiment, you can try to answer these . Encourage this and get them to write down their supposed answers. What do your results tell you about the special properties of copper pennies? They are going to love it! Hypothesis: If I put a copper penny in coca cola, soap and water,. Use your paper towels to gently dry off each penny, then place it in the corresponding square of your table. So for the 2nd stage of this experiment, you will work on these two materials alone. Science - Lesson 6 of 50 - Grades 4,5,6, my middle school special education classroom. i thought that this was very helpful all five of my kids did this and they got an A so yea, gunna use this for my science project at school:D, well i think this experiment was welled organized but it could have showed more steps in the process of how they started from beginning to end also it could have said how long did it sit in the liquid, did they whip it off or not, showed what color was the coin at first etc, This is a great experiment im in 7th grade my science teacher was shocked. In this activity you experimented with 4 different cleaning methods to determine which was the most effective at cleaning pennies. We are going to put the coins into different liquids, which of these liquids do you think will clean them? 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! The unlikely condiment you need to be sure to include? The ketchup is most likely what will surprise your kids the most (and lets be honest perhaps you too!). Well, its time to look at what is in our catsup! Compare the 1 minute and 5 minute pennies in each row. Science - Lesson 1 of 50 - Grades 4,5,6 After 10 minutes, use your tweezers to take the coins out of each cup. This is an instruction and recording sheet for our, (as outlined) is to determine if soapy water or ketchup will, more efficiently. 3 clear cups. Luckily, there are a number of ways to clean pennies and make them look bright and shiny again, using chemistry! Which method works best is determined by the amount of acid present, and the presence of salt. 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! You are going to challenge your children to clean pennies with various kitchen condiments. The child might decide to pick a winning solution or even to rank the pennies in order of which is the most improved. After quite some time, or after exposure to an acid, pennies will formcopper sulfate, carbonate, and chloride salts, which gives pennies a green color. Next, drop in a dirty penny and stir. Why is that? If you continue to use this website without changing your cookie settings or you click "Accept" below then you are consenting to this. Ketchup. that is nice sure for kids. Thats great to know Aayeshi. Add the pennies. Learn how your comment data is processed. 2002-2023 LoveToKnow Media. Copper oxide dissolves in a mixture of weak acid and table salt. All rights reserved. Salt is also a key ingredient in the other cleaning agents, thus making them effective in cleaning the pennies. Here is how to set up your cleaning pennies experiment. (we used our hands very messy business especially with the catsup but the kids thought that was fun!) Trust me on this. Remove the pennies and rinse them with water. 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. Place each of the pennies in the 1 minute column into their corresponding cup. 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. Younger kids who cant yet write well can keep the pennies in front of the cups.). You dont need any fancy gadgets or science kits. Take a few minutes to examine your chosen solutions. Answers to, Questions: 1 colour page Learn how to wash Rothy's shoes so your go-to flats and loafers always look their best. However, in each case, the cleaning method that worked best for you is the one that has the highest concentration of acid. However, over time, they turn dull and dark. Which one do they think will clean the coin the most? If you're cleaning metals like copper or brass with lemon juice over the long term, this can react with the metals and can cause corrosion, damaging the metal. If using bowls or Tupperware, write your label on clear plastic tape and gently attach it. It included a shiny new coin, one blackened and covered in ver, Smart Board Lesson for Beginning Learners, Introduce your students to the process of scientific experimentation, lesson. Hot SauceHot sauce, like Tabasco or taco sauce, also will remove the oxides off pennies. Here's what a young scientist will need to get started: In order to perform this simple experiment, do the following: Once the results are in, talk to the child about which pennies look the cleanest and if they can see any patterns regarding which solutions seemed to do the best job. Not only will you be improving them as an individual, you will also be strengthening the bond you share together. The pennies will be cleaner and brighter than before. Which is the least clean? You dont have to stop after doing this once. Hi, I'm Kim! Dont be afraid to use all your senses. Find out! Next, pour one liquid into each cup. Privacy. The friction does the work. Start with the cups labeled 1. it does not say the date and author on the website! 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. 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. Rocking Chair, Glider, or Recliner for the Nursery: Is It Worth It? Pour cup of baking soda into one of your plastic cups. How does time affect the cleanliness of the pennies? Start by placing the Ketchup, 5 minutes penny into the cup labeled Ketchup 5. My kids had fun doing this, raiding their piggy banks to find some dirty pennies. Thanks for sharing! Pennies rust overtime. Leave the paper clip in the solution overnight. Well keep that in mind. How to Wash Rothy's Shoes & Flats & Keep Them Odor Free. Its a great way to get their young minds critically thinking, and also challenges them to solve problems using logic. Using the tape and marker, label each dish or cup with the name of the solution that will go into it. 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. Kids will love trying their hand at the classic cleaning pennies science experiment to see if theycan use a chemical reaction to make pennies shine brightly once again. So when the coin stays in your pocket or is passed from person to person or stays in that container where you keep all your pennies, the copper in the coin reacts with the oxygen in the air and turns into what is called copper oxide. Wait about 5 minutes, then remove the pennies from the solution. So we did a little experiment to see what would actually happen. Aplus Education Ltd with Vaughan M Blaney, Students love to collect and bring in a dirty, it and why using the scientific method! Ketchup also contains a lot of salt, which helps add to its acidity. Begin your control experiment. Copper oxide is blackish. Follow us on Facebook, Twitter or Instagramto see new experiments! Water from the tap is fine. 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). Pour enough of each solution into its corresponding dish to cover the pennies (it doesn't take much). 12-Page Colour Download: They will need one tarnished, dirty-looking penny for every solution chosen plus one extra as a control (meaning that nothing will be done to this final penny). Place your 'Control, 1 minutes' penny into the 'Control 1' cup. This is a weak acid, which is good since we ingest it. Theres a reason for that. You can actually do lots of simple science experiments at home with just a few basic supplies. 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. also after an hour of the salt and vinegar, the salt made the coin super duper weird and worse. Well, after you wash the ketchup off, that is. Deidre is an avid writer with a Bachelor of Arts in Literature. Pop another coin in both the ketchup and vinegar and salt mixture. Try more solutions. There are two different stages to this Science activity. We're going to try this out today! I'm giving you a shout out on the post. Today is the day you take out your old coins and declare this day, coin cleaning day. Were there any cleaning methods where the time didnt matter, so the 1 minute and 5 minute pennies are equally clean?

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