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Lawrence holds a Bachelor of Fine Arts in screenwriting from New York University and a Master of Science in childhood education from Brooklyn College. Add the pennies. The acid in ketchup is acetic acid, commonly known as vinegar. Wear safety goggles to avoid splash danger. Go back to the table you drew. Cleaning Pennies Science Experiment for Kids - Raising Lifelong Learners (Or have a fun science fair project?) 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'? To begin, the experimenter and supervising adult should plan out which solutions they have access to and can use to test their penny-cleaning capabilities. Smear a small amount of toothpaste onto a dirty penny. All you need is a couple of old copper coins, some different liquids and a few other tools. Hypothesis: If I use 4 different products to clean pennies, adding each product to the a plastic dish (not mixing together), I predict that out of the 4 products, ketchup, fabuloso, coke, and lemon juice that lemon juice will clean a penny the best. Create a solution of vinegar and salt using one teaspoon of salt and 1/4 of a cup of vinegar. Through the data and . However, in each case, the cleaning method that worked best for you is the one that has the highest concentration of acid. None of our pennies were dull anymore, and some were downright shiny! 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. Wipe the coins dry with their paper towels and compare them. Once there's a working hypothesis, the experiment itself can begin. While still scrubbing with the toothbrush, rinse the penny with room temperature water. Discover the quickest ways to keep your Air Force 1s looking like they're fresh out of the box. Her articles appear on the Sixth Wall and other websites. Begin by pouring the vinegar into the bowl. Thanks for sharing! You don't have to do the 2nd one, but it's also a good scientific experiment and you'll even find out why the Statue of Liberty is the color that it is. In this fun and easy kitchen science experiment for kids, we're going to use a chemical reaction to clean pennies. So in our case, we looked at the ingredients. 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!). By continuing to use the site, you agree to the use of cookies. Your Materials For This Science Experiment & Steps Combined. This bluish-green color is called Malachite. The salt and acetic acid in vinegar do the trick. I love coming up with simple and fun learning and STEM activities for kids. In the second cup, put water mixed with dish soap. Lesson contains 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. If you enjoyed this cleaning pennies experiment, you'll love: Wow! You can dispose of any extra ketchup how you normally would. Penny cleaning science projects are a popular choice at grade school science fairs - and for good reason. (we used our hands very messy business especially with the catsup but the kids thought that was fun!) (Glass Or Cup) Upside Down Water Experiment : An Amazing Science Trick! This will help them develop into highly skilled individuals and prepare them for more difficult situations they are sure to encounter later on in life. If you continue to use this website without changing your cookie settings or you click "Accept" below then you are consenting to this. Take a few minutes to examine your chosen solutions. Put 1 tablespoon Ketchup into each Ketchup cup. Set one penny aside to act as your control. Phosphoric acid breaks down the copper oxygen compound and causes a new layer of the copper to be exposed. Based in Los Angeles, Bridgett Michele Lawrence began working as a freelance writer in 2008. of salt and a bowl, preferably metal. This is also why the salt and vinegar mixture was a better coin cleaner than just vinegar alone. Later when you have your results, you will be able to look back on what they have written down and compare their results to their initial answers. Were you surprised by the results? Make sure you stay with your kids during this part and engage with them. We use cookies to ensure that we give you the best experience on our website. Make sure your child doesn't lick the pennies or try to eat any because ketchup is tasty. They are going to love it! that is nice sure for kids. 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. This activity helps students to see and experience the properties of water- including Adhesion, Cohesion, and Surface Tension. TOTAL PAGES AVAILABLE FOR, 10-IN-1 BUNDLE (Set 1 of 5) - Grades 4,5,6, What is in this '10-IN-1 BUNDLE'? Finally, wipe the coins dry with a tea towel or kitchen paper. 1. All with pocket change actually. Theres a reason for that. Place each of the pennies in the 1 minute column into their corresponding cup. Pour cup of baking soda into one of your plastic cups. When the penny is clean, remove it, rinse it with fresh water, and set it aside to dry. 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. This post contains affiliate links. Avoid unsightly marks and scratches by learning how to clean sunglasses the right way. I have an easy science experiment for you today. Place a square of clean, white paper towel in front of each cup. Put a dollop of ketchup on a plate. 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! Try more solutions. First, put the coins back into the same mixture as the one you used in the first experiment. I needed a quick science activity. Observe paper clips next day. So when it comes to cleaning old copper coins, then you will want a solution that gets rid of copper oxide and copper oxide dissolves easily in acids. Well, after you wash the ketchup off, that is. Science isnt a one and done thing. As in ketchup, salt and vinegar . All rights reserved. Will using lemon juice and salt have better results than vinegar? Examples: Vinegar, Coke, Mustard, Mayo, Juice, Milk, Lemon Juice, etc. Cleaning pennies with ketchup: easy and fun STEM for kids. Your email address will not be published. Leave them there for 10 minutes while you and your kids talk about the results of the first experiment. 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. Add the pennies. Once you have the pennies, pour some of the soda into the glass. (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. 6. Ketchup Soak your pennies in ketchup to clean them like new. ', ' link: Why is that? Most of the liquids (except the water) should have somewhat cleaned the coin. Put 1 tablespoon of Vinegar and 1 teaspoon of salt into each Vinegar cup. Dirty Pennies Kitchen Science Experiment - Science Fun Why do you think this might be? 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? Finally, after about 30 minutes to 1 hour, look at the coins again. Place your pennies in a shallow bowl, and cover them with lemon juice. Instructions. The statue ismade of copper and it has turned bluish-green because of this copper-oxygen-chlorine reaction. The pennies will be cleaner and brighter than before. TPT empowers educators to teach at their best. So 1st cup will have catsup, 2nd will have coke, and so on. Just don't drink the coke afterward. 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. The pennies will be cleaner and brighter than before. Hypothesis: If I put a copper penny in coca cola, soap and water,. The answer is pretty simple before 1982, pennies were made almost entirely from copper, and modern pennies are made of copper-plated zinc. Privacy. Thats Chemistry in action for you! 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!). You can read more on the science behind how to clean pennies here: Clean your pennies with ketchup! In fact, new pennies are so pretty that its considered a compliment to say that something is as shiny as a new penny. What do your results tell you about the special properties of copper pennies? 'Fun, ' link: All you'll need is soda, a cup, pennies and some time. 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. Place the pennies in the bowl, and allow them to sit for several minutes. Cleaning Pennies Home Experiment Conclusions Annex Analysis This graph interprets the results of the experiment. For any other use, please contact Science Buddies. Now, when copper reacts to oxygen, it turns dark brown to make copper oxide. Conclusions - Cleaning Pennies Cleaning Pennies Home The project that I made, consisted in cleaning up old and dirty pennies. This is a weak acid, which is good since we ingest it. Why did the catsup clean the coin as well as the vinegar + salt solution? Explore this article things needed 1 Preparation 2 Collect pennies of varying color Collect pennies of varying color. it does not say the date and author on the website! But somewhere along the way, those pennies lose their luster. Wait at least two minutes before rinsing the pennies. Penny Cleaning Science Project | LoveToKnow Ketchup. Its a great way to get their young minds critically thinking, and also challenges them to solve problems using logic. ), and then explain why the salt and vinegar is the winner (sorry to give it awa, enrichment project during our money unit. Use your paper towels to gently dry off each penny, then place it in the corresponding square of your table. Pennies are good for more than just buying penny candy. Dish soap. 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? Wait about 5 minutes, then remove the pennies from the solution. Teacher Notes: Student Write-Up Sample: 1 colour page That is why old coins look, well, old and new coins are bright and shiny. I'm so glad you liked it! And see whats the sciencebehind this phenomena. If you continue to use this site we will assume that you are happy with it. The salt and acetic acid in vinegar do the trick. Taco Sauce Penny Cleaner - Steve Spangler It also helps them practice graphing, determining independent and dependent variables, and analyzing experimental results. This is a fun and easy STEM activity that introduces the idea of oxidation and basic chemical reactions. Start a 1 minute timer. All you need are, , water, dish soap, salt, and vinegar. Hot SauceHot sauce, like Tabasco or taco sauce, also will remove the oxides off pennies. Reproduction of material from this website without written permission is strictly prohibited. But still fun expiriment!! But if you really want to dig in you can guide your children through the scientific method while doing this. If you are looking for a fun and engaging way to keep kids passionate about learning, check out Groovy Lab in a Box. Can you think of other safe household acids you could test? Place a paper clip in each cup of vinegar and salt solution. After cups are put away, remove goggles. Teaching kids about science doesn't have to be intimidating. This is an instruction and recording sheet for our, (as outlined) is to determine if soapy water or ketchup will, more efficiently. Curious about the science? At Home Chemistry: Cleaning Pennies with Ketchup Quizzes with auto-grading, and real-time student data. Vinegar and lemon juice are both acids. Do not add anything to the cup. Cover the pennies with each of the mixtures, smear them around with your fingers, and give the ingredients at least 2 minutes to react. Clean Pennies - Utah Education Network The word "tarnish" refers to the dull or gray-green coloration found on some older pennies. So, the acetic acid in vinegar dissolves the copper oxide and cleans it. However, that uniquely, How to Clean Nike Air Force 1s so They're Good as New. 2002-2023 LoveToKnow Media. follow up activities, 10 graphing activities for graphing the hypothesis. A variety of products can be used to keep your pennies looking shiny and new. Step 1 Fill a glass cup with vinegar and pour it in a non-metallic bowl. Slowly add water, 1 tablespoon at time, until youve created a paste. . Put pennies in each solution to see which one does the best job of cleaning the pennies. Science - Lesson 2 of 50 - Grades 4,5,6 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. 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. Rinse and dry the penny. Most of these aren't substances that are typically used to clean, which is part of makes guessing how they will affect the pennies more fun. It turns out that when you mix vinegar and salt, a chemical reaction takes place and form what is called hydrochloric acid. First, prepare all your cups and line them up. So we proceeded to read the other ingredients and guess what we found? Want to wow your kids with some simple kitchen science? It is a step-by-step, that the students can perform on their own. TEN Quick and Easy Science Experiments for Kids! Cleaning With Lemon Experiment | Science project - Education Get rid of dirt, oil, rust, and debris with a regular garage floor cleaning and maintenance routine. The oxygen in the air and the copper in the pennies form an oxide that coats the pennies and makes them look dirty.