pennies cleaning science experiment conclusion

They are going to love it! My goal is to encourage moms, find practical parenting solutions, and help moms with the unique challenges twins bring! The child might decide to pick a winning solution or even to rank the pennies in order of which is the most improved. Thanks for sharing! I LOVE teaching! Compare the 1 minute and 5 minute pennies in each row. Once there's a working hypothesis, the experiment itself can begin. You can read more on the science behind how to clean pennies here: Clean your pennies with ketchup! Thank you for sharing! Update Includes Google Slides version for distance learning science experime Subjects: Medioimages/Photodisc/Photodisc/Getty Images. Lab, Students of all ages have fun doing this easy, ! Copper oxide is blackish. Wipe the excess ketchup off the pennies, then rinse them off. Stir until the salt dissolves. Wear safety goggles to avoid splash danger. Students will practice NGSS skills such as asking questions, planning and carrying out an investigation, and analyzing and interpreting data. How does time affect the cleanliness of the pennies? Kids will get all the supplies they need to complete the activities in addition to a cool lab book .Subscribe here. Chemistry Experiments With Pennies - ThoughtCo 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). Water is the worst because it is a neutral liquid, meaning that it sits smack in the middle of the pH scale. Penny lab experiment conclusion. Cleaning Pennies Science Experiment In this fun and easy kitchen science experiment for kids, we're going to use a chemical reaction to clean pennies. Copper oxide is brownish or sometimes black in color (depending on other things in the pennys environment). But heres the question that Im sure is brewing in your mind. Step 4: Did you do the 2nd stage of this cleaning coins experiment? I have included 4 recording sheets to go along. Penny Cleaning Experiment - Instructables This is because when the hydrochloric solution cleaned the coin and air dried it, it also took with it some of the salt. from Science Buddies http://www.sciencebuddies.org/science-activities. 1. Use your paper towels to gently dry off each penny, then place it in the corresponding square of your table. (You may need to push the one in the catsup to get it fully submerged). Salt is also a key ingredient in the other cleaning agents, thus making them effective in cleaning the pennies. ), 2 tablespoons freshly squeezed Lemon Juice, 2 tablespoons Tabasco Sauce (or other hot sauce), 11 plastic cups (small Tupperware containers or bowls will work as well). Kids will love Groovy Lab in a Box because it contains everything they need to do experiments focused on science, technology, engineering and math (STEM). Phosphoric acid breaks down the copper oxygen compound and causes a new layer of the copper to be exposed. Which penny is the cleanest, compared to the control? Continue to place each penny in the 5 minutes column in its corresponding cup. Her articles appear on the Sixth Wall and other websites. Why is that? 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. Great for President's Day! All pennies start out the same color beautiful and bright copper. Record this number on your data table under trial 1. When the penny is clean, remove it, rinse it with fresh water, and set it aside to dry. Examples: Vinegar, Coke, Mustard, Mayo, Juice, Milk, Lemon Juice, etc. 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. 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'? Dry the pennies with a paper towel. Fill the eyedropper with water from the water beaker and carefully count the number of drops that fit on the penny until the water spills over the edge. Update Includes Google Slides version for distance learning, Rated 4.77 out of 5, based on 172 reviews, " is a product that provides a fun and educational activity for children and adults alike. 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! Seven Layer Density Column Science Experiment, Exploding Popsicle Stick Bomb Tutorial An Energy Experiment For Kids. It appears, the salt breaks down somewhat, freeing chlorine ions into the solution. If you are looking for an easy way to engage your kids with science, then why dont you try out the classic cleaning coins experiment? The child should be prepared to discuss why they think some solutions were more effective than others. Shine Bright Like a.Penny! | STEM Activity - Science Buddies Then, you should have more acidic solutions like ketchup and the salt and vinegar mixture. Was 1 minute or 5 minutes more effective in cleaning the pennies overall? What will happen when the liquid cleans the coin? All you need are pennies, water, dish soap, salt, and vinegar. Explore this article things needed 1 Preparation 2 Collect pennies of varying color Collect pennies of varying color. We are going to put the coins into different liquids, which of these liquids do you think will clean them? Begin the experiment by placing a few pennies on a small plate. Science - Lesson 4 of 50 - Grades 4,5,6 She's worked as a freelance copywriter and fiction writer for over a decade. As you are drying them, you'll notice that rubbing results in some of the dirt coming off the pennies. Science - Lesson 2 of 50 - Grades 4,5,6 method. Dry the pennies with a paper towel. Once the budding scientist has a pile of pennies, he or she should choose and collect their selection of cleaning solutions. Salt is another compound called sodium chloride, so it contains a chemical called chlorine (like what we use in swimming pools to keep them clean). I know I was. This dirt is actually copper oxide. No, the scientific method isnt a chore. 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. They react to form copper oxide, which is darker in color. When the oxygen and the copper on the coins' outsides interact, a substance called copper oxide is formed. Begin by pouring the vinegar into the bowl. Whats in the Bag?Making MusicMouse Paint (, gel frosting)Rain PaintSecret MessagesDucks Like RainFloat or Sink PumpkinsDo Seeds Travel?VolcanoesThe Windy DayDo Whales Get Cold?Candle RacesWh, Rated 4.92 out of 5, based on 838 reviews, . Put 1 tablespoon of Vinegar and 1 teaspoon of salt into each Vinegar cup. . Oxygen in the atmosphere has a negative charge that is attracted to the positive charge of the copper in the penny. chemistry, kitchen science experiments, coin experiments. Cleaning Pennies Experiment - Mess for Less We laid our pennies out to look at them and were surprised with the results. Kids are given some background on chemical reactions and oxidation. Phosphoric acid breaks down the copper oxygen compound and causes a new layer of the copper to be exposed. My goal is to ease the burdens of educators by offering memorable learning activities. Im going to use this for my science project at school but im going to do it for more then 10 minutes. Thanks a lot Meriley. 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. KetchupSoak your pennies in ketchup to clean them like new. 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. This blue-green is called malachite and copper can turn into malachite over many years of exposure to chlorine and oxygen. Put pennies in each solution to see which one does the best job of cleaning the pennies. The next day, pour the soda out of the glass, careful to leave the pennies. Here are the scientific method steps and some sample questions to help you work through it. Ask them questions, have them tell you what they see happening. Here is the full list so you can tick them off with your kids as you collect them: When it comes to what liquids you and your kids can use in this experiment, part of the fun is asking them what they think would be good to use and trying it out. Encourage this and get them to write down their supposed answers. Place a penny in it and cover the penny with ketchup. The experiment can be done with just as much fun and learning without using this tool. Cleaning Pennies Home Experiment Conclusions Annex Analysis This graph interprets the results of the experiment. Students should also be able to identify if this change is chemical or physical. Problem & Hypothesis - Cleaning Copper Pennies - Google Sites Using the tape and marker, label each dish or cup with the name of the solution that will go into it. Your kids will love this simple chemistry experiment. After 10 minutes, take the coins out of the cups and lay them out on some kitchen paper but do not dry them! Great for President's Day! The following titles name the 20, /activities.Shake It! They each include Question, Hypothesis, #1-How many drops of water can you fit on a, #2-Which liquid can you fit the most drops of on, to hook those kiddos and get them writing up a lab report! 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. Penny cleaning science projects are a popular choice at grade school science fairs - and for good reason. Science isnt a one and done thing. This bluish-green color is called Malachite. Set one penny aside to act as your control. 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. I preceded the, a presentation from the U.S. Mint site on how coins are made. Remember that copper turns dark brown when reacting with oxygen? The chemistry behind the experiment is simple yet interesting, and the project is easy for children of all ages to do. HOW TO CLEAN PENNIES| SCIENCE EXPERIMENT - YouTube Cleaning Pennies Science Experiment for Kids. salt water? 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. Which is the least clean? 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. Were you surprised by the results? Copper oxide dissolves in a mixture of weak acid and table salt. Note: Some of the links on this page are affiliate links. For a complete clean, flip the pennies over and repeat the process on the other side. Luckily, there are a number of ways to clean pennies and make them look bright and shiny again, using chemistry! Younger kids who cant yet write well can keep the pennies in front of the cups.). Make a paste from your baking soda and water. The reason for this is that copper has quite the relationship with Oxygenthat isthey react to each other. Adding salt to any of the acids (lemon juice, vinegar, etc) makes this acid cleaning more effective by creating free hydrogen atoms in the solution, which increases the acid's strength. They can also consider which might clean the pennies fastest. In this experiment, if the water is corrosive enough to strip off the copper oxide then you will see the progress of the reaction by watching the pennies go from dull and dingy to bright and shiny. Pre-made digital activities. After all the pennies have soaked for about five minutes, it is time to pull them out. Which method works best is determined by the amount of acid present, and the presence of salt. 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. Label each cup with a pen so you and your kids know what liquid is in each up. How do they feel? of salt and a bowl, preferably metal. Well, its time to look at what is in our catsup! Place your Control, 1 minutes penny into the Control 1 cup. Through a penny cleaning science project, you can study atoms, chemical changes and observing processes through the scientific method, all of which are science lesson benchmarks for eighth grade. 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!). Make sure your child doesn't lick the pennies or try to eat any because ketchup is tasty. Who knew learning how to clean a penny could be so much fun? 5. Oranges? Privacy. Also after 10 mins none of them got cleaned but after an hour of the ketchup, it was mostly clean. Test whether these cleaning solutions work on other types of coins. The pennies will be cleaner and brighter than before. This way, you wont mix up the coins when it comes to comparing them. They look brown or black, and sometimes theyre so dirty looking that you cant even tell whether theyre pennies! 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. What happens? While still scrubbing with the toothbrush, rinse the penny with room temperature water. In this activity were going to explore why pennies dont stay bright and shiny, and test different methods to bring the shine back! Hypothesis: If I put a copper penny in coca cola, soap and water,. You dont need any fancy gadgets or science kits to clean these coins, all you need are a few household ingredients and you will have shiny new coins in less than an hour. But we think that that alone could not clean coins this quickly. Dish soap. This means you will only have two cups to work with. Hi! ), and then explain why the salt and vinegar is the winner (sorry to give it awa, enrichment project during our money unit. Wait about 5 minutes, then remove the pennies from the solution. If you have chosen to do the extra second step with your kids, then you will have noticed upon your frequent checks that the coins will have turned a blue-green color after being left to air dry. The pennies will be cleaner and brighter than before. One of my daughters thought that the pennies would get dissolved while my other daughter thought the soda would make the pennies dirtier. In this case, you may have noticed that the Ketchup and Tabasco pennies were not quiet as well-cleaned as the pennies that were in the vinegar and lemon juice. Citrus JuiceTry a variety of citrus juices to see which works best or simply let your pennies soak in lemon juice. 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. The oxygen in the air and the copper in the pennies form an oxide that coats the pennies and makes them look dirty. I have an easy science experiment for you today. The liquids didnt clean the coins in 10 minutes so I think it needed to be for longer! After a few minutes, remove the pennies from the bowl, and rinse them with water. Ketchup also contains a lot of salt, which helps add to its acidity. Students will create a booklet or for a quicker project, just print the worksheet. Go back to the table you drew. You are going to challenge your children to clean pennies with various kitchen condiments. This is also why the salt and vinegar mixture was a better coin cleaner than just vinegar alone. Vinegar (or Lemon Juice) and Salt This method is the best way to clean your pennies, and it will produce a very bright orangey-copper color on your pennies. This will be where you place your coins for comparison. All with pocket change actually. Book a Science PartyHave the Science Guy visit your school! Repeat the experiment with the same pennies in a new solution of vinegar and salt and see if you can make them even brighter! While copper is a beautiful metal, it is also reactive. Smear a small amount of toothpaste onto a dirty penny. 1/2 cup vinegar. 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. And it actually has a lot of practical life lessons wrapped up in it. Place the pennies in the bowl, and allow them to sit for several minutes. The 25 Best Wooden Puzzles for Toddlers (Teacher Approved! 'Elephant's Toothpaste, - Lesson 4 of 50 - Grades 4,5,6 Im not talking about the literal dirt that ends up collecting on them Im talking about the residue that is still present even if you rinse your pennies off with water. we do during the week of Presidents' Day or when we are talking about coins in Math. How to Wash Rothy's Shoes & Flats & Keep Them Odor Free. After cups are put away, remove goggles. Making an hypothesis is easy its basically asking a question! When we clean copper pennies this way, we arent just rubbing dirt off of them. CLEAN PENNIES WITH VINEGAR - ScienceBob.com Next, drop in a dirty penny and stir. Slowly add water, 1 tablespoon at time, until youve created a paste. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); This site uses Akismet to reduce spam. (Optional) Dip one piece of pH paper in each solution (it turns more blue for basic liquids and more red for acidic ones), let it dry, and label which liquid it was dipped in. The project above is a DEMONSTRATION. Isnt that amazing? The friction does the work. Now comes the hardest part of the experiment - the waiting. We are actually performing a chemical reaction that breaks down the copper oxide. The word "tarnish" refers to the dull or gray-green coloration found on some older pennies. Make this your own and let your kids explore. This is a pretty safe experiment. Are you getting the free resources, updates, and special offers we send out every week in our teacher newsletter? Wipe the coins dry with their paper towels and compare them. The soda cleans the pennies because it contains phosphoric acid. Science Activity: Turn Old Pennies Bright and Shiny! | Exploratorium Teacher Notes: Student Write-Up Sample: 1 colour page After quite some time, or after exposure to an acid, pennies will formcopper sulfate, carbonate, and chloride salts, which gives pennies a green color. This looks like a great activity to do with my kiddos! Well, after you wash the ketchup off, that is. However, over time, they turn dull and dark. So 1st cup will have catsup, 2nd will have coke, and so on. Cover the pennies with taco sauce, spreading the sauce over the pennies until they are completely covered. 2. Stage 1: First, prepare all your cups and line them up. Add the pennies. But what about the ketchup? Experiments on Cleaning Pennies | Sciencing Dry the pennies with a paper towel. 'Dry Ice Bubble, ' link: 2002-2023 LoveToKnow Media. Its a great way to get their young minds critically thinking, and also challenges them to solve problems using logic. Do not add anything to the cup. For my class, I just had to explain the process, give them a definition of a hypothesis (letting them know it's okay to be wrong! Water is the worst because it is a neutral liquid, meaning that it sits smack in the middle of the pH scale. Cleaning Coins Experiment [Procedure And Explanation] If you are doing this with older children who can write you can have them write out a grid for penny comparison. Conclusions - Cleaning Pennies Can you think of other safe household acids you could test? Step 2: Dip one penny halfway into the liquid. Its that dull dark. ), 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? Keep trying, keep asking why, and keep learning. Avoid unsightly marks and scratches by learning how to clean sunglasses the right way. Set one penny aside to act as your control. Lesson contains This is your control. Place your pennies in a shallow bowl, and cover them with lemon juice. When copper reacts with oxygen and chlorine, it turns blue-green instead! It isn't just dirt, it is the result of the copper in the pennies interacting with oxygen in the atmosphere. It turns out that when you mix vinegar and salt, a chemical reaction takes place and form what is called hydrochloric acid. DIY | Penny Cleaning Experiments | Playvolution HQ Density Experiment With Water Watch The Floating Egg! Wipe the penny off with a paper towel and rinse off. Place two equally tarnished pennies on each of three different plates. Follow us on Facebook, Twitter or Instagramto see new experiments! It is a great sensory STEM activity for preschoolers and older children. Its that dull dark color that coats old coins. 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. Repeat the process until the penny reaches the desired shininess. Can you clearly see Abraham Lincoln? are shinier than others, learn the meaning of a hypothesis by watching a video (link to website), make a hypothesis, graph their hypothesis, are dull and how they become shiny. First, prepare all your cups and line them up. We talked about the materials used for making, and the process of oxidation. This easy and fun science experiment teaches kids about chemical reactions in a way that seems like magic! If you are looking for a fun and engaging way to keep kids passionate about learning, check out Groovy Lab in a Box. But if you really want to dig in you can guide your children through the scientific method while doing this. Cleaning Pennies Science Project.docx - Course Hero . Which penny is the cleanest, compared to its before picture? 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. This is why bright shiny pennies dull with age. Now closely look at each coin. 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! Have you ever wondered why some pennies are shiny and some are dull? A great way to do this is by doing fun science experiments with your kid at home. Yes, thats right. Just don't drink the coke afterward. Start by placing the Ketchup, 5 minutes penny into the cup labeled Ketchup 5. Based in Los Angeles, Bridgett Michele Lawrence began working as a freelance writer in 2008. 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. The salt and acetic acid in vinegar do the trick. This packet includes a direction list/timeline for the teacher, class observation form, 2 different CER responses (one, and one without a graphic organizer) AND an opportunity for students to graph and a, , and Which Type of Water Works Best? Why or why not? Add the salt, and stir until the salt is completely dissolved. After 10 minutes, use your tweezers to take the coins out of each cup. of salt and a bowl, preferably metal. 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'? 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. Remove the pennies and rinse them with water. Remember that at the very start, I said you should use only copper coins? What do your results tell you about the special properties of copper pennies? Sign up to learn about our special events, clubs, camps, promotions and school programs. (Keeping the pennies in front of the cups will help you remember which solution they were each in. Let the pennies dry on pieces of paper towel. You can actually do lots of simple science experiments at home with just a few basic supplies. The ketchup is most likely what will surprise your kids the most (and lets be honest perhaps you too!). 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