Let us know if this happens! If bacteria are not present, will iron rust extremely slowly? What is visual communication and why it matters; Nov. 20, 2020 This science experiment is all about controlling variables to explore which material will rust an iron nail first. Get in touch with FizzicsEd to find out how we can work with your class. The reaction of the rusting of iron involves an increase in the oxidation state of iron, accompanied by a loss of electrons. Does the normal rusting process of iron depend on bacterial action? Many thanks for bringing such a high calibre show to St Vincent’s yesterday. It contained agar and turned into a gel on cooling. The ideal way to measure rust is to weigh the nail before you start the experiment, let it rust in the solution for your experiment, then use special chemicals to dissolve away the rust, and then weigh the nail again -- determining the amount of corrosion by how much weight of metal the nail … You will find the copper did not prevent the nail from rusting, while the zinc and magnesium protected the nail. Share this document via email; Your email address. This setup is just one way of running this classic rust experiment. https://sciencing.com/experiments-rusting-iron-nails-8612314.html This experiment is very much about variable testing! 1.In the first test tube containing iron nail, we put some anhydrous calcium chloride and closed its mouth with a tight cork. Sand paper may be needed to remove any surface coating. Rusting is the common term for corrosion of iron and its alloys, such as steel. It also indicates where these take place on iron nails. 2. Bend one of the nails at a 90° angle using two pairs of pliers. Have fun! How can I adjust the experiment to make them actually rust? But the nail present in test tube A rusts because in test tube A the nail was exposed to both air and water. Density experiments are versatile to fit most age levels. Optional: Weigh each nail with an accurate scale at the start and the end of the experiment. 2Now prepare the test-tubes as below, so that: – test-tube 1 contains dry air – test-tube 2 contains water but no air – test-tube 3 has both air and water. For example in mild steel (which is greater than 99% iron) the metal corrodes according to … I wanted to give a special mention to Ben, he is such a fantastic and engaging presenter and I think he may now have a Middle Park PS fan club! A great summary of the three reactions can be found here Lina  – Principal. https://www.fizzicseducation.com.au/.../rusty-nail-experiment You could also try the follwing experiment conditions too: – nail completely submerged in water vs. half submerged. 4 small containers or jars with lids (make sure they are completely dry) In the reduction half-reaction, oxygen, O. Does the normal rusting process of iron depend on bacterial action? They rust faster in salty water or acid rain. The rusting of iron usually is considered to be a destructive change, and considerable time and money are expended to prevent it. In order to show rusting, a warm rust indicator solution (pale yellow in colour) was used. Rust is a general term for a series of iron oxides, usually, red oxides, formed by the reaction of iron with oxygen in the presence of water or air moisture. In the corrosion process, metals get oxidized. An understanding of the activity series investigated in experiment 6 suggests that one way of preventing the corrosion of iron is to protect it with a more active metal. The layer of oil will prevent the entry of air in water. If you are able to have access to laboratory scales within a high school, you should be able to take a measurement of each nail mass before and after the experiment. Here’s something that could start you off; Investigation the conditions under which iron nail rusts. The following experiment investigates the conditions necessary for rusting to occur. Why? By Steve Elias Mr. Taylor Period 3 Hypothesis: In my experiment I will try to prove that bacteria does have an effect on the process of rusting. Iron and steel rust when they come into contact with water and oxygen. Problem! If you scratch the nail first, will it rust faster or slower? Steel nail- a significant level of corrosion occurred when the nails were exposed to tap water, salt water and vinegar, therefore, it could be used on furniture and any indoor use where it is not exposed to water. Sorry Michelle, I’m not sure of a chemical that will do this. Just wanted to let you know that today’s ‘Little science big fun’ show with was amazing! Follow FizzicsEd 150 Science Experiments: Set up the 6 test tubes or cups as shown in the picture above. By Steve Elias Mr. Taylor Period 3 Hypothesis: In my experiment I will try to prove that bacteria does have an effect on the process of rusting. In this reaction, free iron, Fe, is oxidized to Fe2+ and Fe3+ ions. I wanted to do a variation of this experiment for my high school class. Water removes electrons from iron, leaving it positively charged. Share this document via email; Your email address. The more sensitive the scales, the better! thanks. Rust is mostly made up of two different oxides of iron that vary in the oxidation state of the iron … Clean two iron nails with sandpaper or steel wool. This shows that for rusting of iron both air and water are necessary. Prepare three vials of water, in which our nails are supposed to rust. Hi Lara! 2. We are 6th graders doing a science fair project, on rusting nails. This means they should have little to no protection to the salt. The children were so engaged and the way Russell shared a variety of scientific concepts was great. Take three test tubes A, B and C and place one clean iron nail in each of them. In water, you tend to see the beginnings of rust within a couple of days or so whereas other liquids take longer. This website and its content is subject to our Terms and Conditions. Do you know what type of reaction this and also the science behind it? After some days, you will observe that the nail in test tube B does not rust because the nail was exposed only to water and no air was present in it. Report what you see in regard to the nails and any rust and compare the results for each solution. The experiments you put together were astonishing and engaging. Then compare the weights of the nail(and any rust)at the end of the experiment and compare it with the nail's original weight. This experiment indicates that the corrosion of iron involves oxidation and reduction reactions. When iron is in contact with a more reactive metal, this metal will be oxidised(rusted) in preference to the iron thus protecting the iron from corrosion. This is also a good time to enter this into your own classroom blog! The rust formed on the outside is still permeable by the water and salt ions, which means that we would expect this rusting to happen underneath the top layer of rust as well. Clean iron nails should be used. Make sure you do not mix the nails up! Second method is rusting of iron nail. Rusting is the common term for corrosion of iron and its alloys, such as steel. Please fill out the details below and an email will be sent to you. Use “bright common” (all-purpose) nails for this experiment. Q. ii) Moist two iron nails with distilled water and slide it in the test tube marked ‘A’ close the mouth of the tube. Test your understanding and answer these questions: Test your understanding and answer these questions, Reactivity Series or Activity Series of Metals, Enrichment of Ore or Concentration of Ore, Conversion of Concentrated Ore into Metal Oxide, Methods to Obtain Metals of Very High Purity, Experiment to prove that both air and water are necessary for rusting of iron. A thin film of oxide forms on the iron; this actually protects the metal from further corrosion by slowing the rate of oxidation. * Water will cause metals to rust; this reaction can be accelerated by adding salts. Another way to prevent the corrosion of iron is to exclude oxygen and moisture from its surface with a protective coating. Take three iron nails Fe. 2, reacts with water to form OH- ions. ii) Moist two iron nails with distilled water and slide it in the test tube marked ‘A’ close the mouth of the tube. This phenomenon is a great example of the corrosion of metals, where the surfaces of metals are degraded into more chemically stable oxides. Rust is a general term for a series of iron oxides, usually, red oxides, formed by the reaction of iron with oxygen in the presence of water or air moisture. – Face to face incursions & online programs available. High School × Share via Email × Close. In the corrosion process, metals get oxidized. By using our website you consent to all cookies in accordance with our Cookie Policy. seawater!than!they!do!in!normal!water. thank you, Hi Viv! 3Leave the test-tubes to one side for several days. For the control it can be seen that the R 2 value is 0.9905, which is 0.95 percent off the expected result, demonstrating that there was virtually a perfect fit for all the points on the line. Thanks. Should we cover the bottle of water to hasten the rusting process ? When metals are exposed to their environment, they undergo corrosion. I'm Sylvia and I'm an 8th grader doing a science fair project on "does pH affect the rate of rusting of an iron nail?". Rust (hydrous oxide) is an example of this change that results when iron is exposed to water or damp air. Anhydrous calcium chloride is drying agent. Practical and results for a rusting experiment. – Aim; To determine which liquid produces the most rust on an iron nail. Rust is the common name for iron oxide.The most familiar form of rust is the reddish coating that forms flakes on iron and steel (Fe 2 O 3), but rust also comes in other colors including yellow, brown, orange, and even green!The different colors reflect various chemical compositions of rust. Thank you for looking to subscribing to our newsletter Put an iron nail in one test tube and label it A and a steel nail in another tube label it B For example, after some time, a shiny aluminium pot will lose its shine, silverware will tarnish and an iron structure will rust. iii) In the test tube ‘B’ take 5 ml of water and boil it so as to remove dissolved air. Copyright 2020 Fizzics Education . Purchase 2 pounds of iron nails and separate into 1 pound groups. The rusting process of a nail speeds up considerably when it is in certain types of liquids. For my science project I decided I wanted to study physical sceince! The!process!of!rusting!involves!electrons!moving!around,!and!electrons!move!more!easily!in!salt!or! What factors are known to speed up or slow down corrosion (rusting) of iron? What happens when you use different liquids? Aluminium, on the other hand, does not corrode easily, because its surface is protected by a layer of aluminium oxide. Your email address will not be published. In the test tube B pour boiled water which does not contain dissolved air. In the test tube A pour some water and close its mouth with the help of a cork. Designed from real classroom experiences, this modular day helps you create consistently effective science learning that directly address the new curriculum with easily accessible and cost-effective materials. In the test tube B pour boiled water which does not contain dissolved air. When metals are exposed to their environment, they undergo corrosion. Free Chemistry Book! Perhaps the most familiar example of corrosion is the rusting of iron. Rusting of Iron. I could not choose any random iron nail to conduct my experiment because the result will not be accurate and precise as they could have different degree of rusting. High School × Share via Email × Close. Truly appreciate the opportunity we were given. Thank you, Salamah College Team. Conditions for Rusting Iron and steel rust when they come into contact with water and oxygen. So, it is added into test tube C to absorb all the moisture present in the air of test tube. Hi! This is a long term corrosion experiment requiring a few minutes each day first for setup ... 2 each of steel nails, 2 to 3 inches long, as follows: • Standard bright nails ... familiar with rust, the iron oxide corrosion product of steel. Potassium hexacyanoferrate(III) (about 0.2 g) (skin and eye irritant, harmful if inhaled or ingested) In the same way the nail present in test tube C does not rust because in this tube air is dry and water is not present. For example, after some time, a shiny aluminium pot will lose its shine, silverware will tarnish and an iron structure will rust. Rust is the common name for iron oxide.The most familiar form of rust is the reddish coating that forms flakes on iron and steel (Fe 2 O 3), but rust also comes in other colors including yellow, brown, orange, and even green!The different colors reflect various chemical compositions of rust. An aqueous solution of detergent or some acetone can be used to degrease the iron nails before the experiment. Oxygen then reacts to the positively charged iron and creates ferrous oxide. Subscribe for special offers & receive free resources? – Null Hypothesis; There will be no change in rust on an iron nail when immersed in ‘ABC liquid’. Corrosion of metal: 1. It produces a blue colour with Fe3+ ions and a pink colour with hydroxide ions. We take three test tubes and put clean iron nail in each of the them. Answer: The corrosion of iron indicates a chemical change in the metal. I’m really confused about how can I weigh corrosion in metals. Rusting Nails student experiment and research. The two experiments on the right slow down or stop the formation of rust. What do you think? In the case of iron rusting, the new compound is called iron oxide… also known as rust! Once you get that just click on the link to confirm your subscription and you're all done! What substances slow or stop rust. Corrosion of metal: 1. The thick layer of Chromium and Zinc on the galvanised steel slows the rusting as it prevents oxygen reaching the metal (at least for a while). What if you use iron wool and iron filings instead. Try the experiment out and let us know your results! HELP! Corrosion of metal is Therefore, I buy iron nails that not rusted yet and undergo experimental procedure for the iron nails to rust under constant condition. Connect the first nail to the less reactive metal copper Cu, leave the second one as is, and connect the third one to the more reactive metal zinc Zn. Connect the first nail to the less reactive metal copper Cu, leave the second one as is, and connect the third one to the more reactive metal zinc Zn. Electrons will move through the wires from the more reactive metal to the less reactive metal. Required fields are marked *. If I was to experiment 5 different iron nails, what would be some good ideas as to getting good experimental data that will show which factors speed up the process of rusting Why will these factors speed/slow down the reaction please help i really need this done Hi Rouzana! In the test tube A pour some water and close its mouth with the help of a cork. In this reaction, free iron, Fe, is oxidized to Fe2+ and Fe3+ ions. hey You could also try normal steel nails vs. steel wool to investigate the effect of surface area on rusting rates as well. I want to help you achieve the grades you (and I) know you are capable of; these grades are the stepping stone to your future. I predicted that the bleach would make the nail rust more because bleach is a strong chemical and it smells powerful. An experiment to investigate rusting 1Stand three identical nails in three test-tubes. Clean two iron nails with sandpaper or steel wool. You can actually see this affect by scratching off part of the galvanised layer and then letting this area rust as you’ve removed the protection (read up on crevice corrosion). Rusting is the oxidation of metal, whereby the oxygen in the environment combines with the metal to form a new compound called a metal oxide. Perhaps the most familiar example of corrosion is the rusting of iron. Avoid touching copper sulphate solution or nail dipped in copper sulphate solution as copper sulphate is poisonous. This video is a science experiment in which we want to know in which condition does the nail rust the fastest. ; Rusting – a redox reaction that take places between iron and oxygen to form hydrated iron(III) oxide and this is a slow reaction. Bend one of the nails at a 90° angle using two pairs of pliers. Iron will oxidize to form rust. – If you were able to weigh each nail at the end of the experiment, was there any difference between the nails? Hi! Magnesium ribbon and the copper wire should be used to wrap around the iron nail tightly. In the test tube C put some anhydrous calcium chloride and cork it. It is clear from the experiment that it should not be used in salt water. Try boiling the water… does this make the nail rust faster, slower or is there no impact on the rusting time? Your energetic approach grasped the students’ attention and kept them engaged throughout the show. Place ferroxyl indicator to a depth of about 5cm in five test tubes; Clean the nails with sand paper; Place an iron nail … Nov. 21, 2020. Keep these test tubes undisturbed for some days. In the reduction half-reaction, oxygen, O. The rusting of iron usually is considered to be a destructive change, and considerable time and money are expended to prevent it. I used vinegar, water, and three vinegar-water mixtures (each with a different pH) to put my iron nails in. Interesting! It was great meeting you. Chemistry Project File Effect of metal coupling on rusting of iron Submitted By: Paras Yadav Class: XII-A Submitted To: Mr. Amarnath Sinha Index TOPIC PAGE NO. This should continue until the nail becomes completely iron oxide (rust). There’s actually a few things going on here over three separate reactions: ! Zinc and magnesium, used often in galvanization of steel, are electropositive metals that form a barrier between iron and oxygen, thus protecting iron from corrosion. Rusting as a Redox Reaction. Corrosion of metal is Documents similar to "Corrosion of Iron Experiment Report" are suggested based on similar topic fingerprints from a variety of other Thinkswap Subjects University. Sign-up to our newsletter and receive a free book! Prepare three vials of water, in which our nails are supposed to rust. Water and oxygen will take in electrons to form hydroxide. Through this service you’ll be first to know about the newest free experiments, science news and special offers. materials the materials we used are: 5 nails 10ml of different liquids 5 test tubes 1 test tube holder measuring tube 10ml of soap water 10ml of lemonade 10ml of vinegar 10ml of Distilled water 10ml of salt water method step1. 2. Both water and oxygen are needed for rusting to occur. In Part A of this experiment you will observe the reaction of an iron nail in acidic, basic, and neutral solutions. iii) In the test tube ‘B’ take 5 ml of water and boil it so as to remove dissolved air. Thank you! Hi Kolwawole! Six iron nails were cleaned, degreased and … Keep the control experiment to compare the colour of iron nails and copper sulphate solution. Can you please help. Send us an Email at info@fizzicseducation.com.au. Blog. What factors are known to speed up or slow down corrosion (rusting) of iron? Thanks for your question. I chose to experiment on a nail because it represents metal in general and is a cheap source of material to experiment … The thing is, your bright steel nails are non-galvanised. Over the coming days take recording of each nail’s condition. – Which nail showed rust first? We used water & pickle juice in one container, and in the other we used vinegar & water. The form and amount of Observe your nails 24 hours later. Bleach effects clothes and other materials, so it would effect the nail also. I bought non galvanised steel nails (they are called bright steel) and I have had them in my liquids (salt water and tap water) for a week now and instead of showing signs of rust they have just gone a grey colour. In the test tube B pour boiled water which does not contain dissolved air. The causes of rusting Class practical. This is an example of a Redox reaction, wherein this case the iron reacts with water and oxygen to form hydrated iron(III) oxide, which we see as rust. The rusting of iron is characterized by the formation of a layer of a red, flaky substance that easily crumbles into a powder. 2002. Optional: Try different nails in the same liquid… do they rust differently? Experiment to prove that air and water are necessary for rusting of iron Take three test tubes A, B and C and place one clean iron nail in each of them. – nail completely submerged in water with a layer of oil over the top of it. can you tell us the chemical formula of the equation iron+water+oxygen= hydrated iron(III) oxide For example in mild steel (which is greater than 99% iron) the metal corrodes according to … Ensure the mass and volume of each group is equivalent. Steel Nail Some significant changes in appearance of the liquid and metals. Corrosion of Iron continued 4 216 inn cientific Inc ihts esered Teacher’s Notes for Guided Inquiry Corrosion of Iron Demonstration Procedure 1. Give an experiment to prove that both air and water are necessary for rusting of iron. Lesson organisation. All rights reserved. They rust faster in salty water or acid rain. On behalf of Salamah College staff and students, we would like to say a big thank you for your kind effort and hard work. If left for longer, the nails should begin to corrode on the outside. I just wanted to send some feedback. The harder the water the more difficult it is to rust a hot-dip galvanised nail as it affects the pH and the action of sodium and chlorine ions that come from the dissolved salt in the water (see this link). So, go ahead try out the experiment….! Electrons will move through the wires from the more reactive metal to the less reactive metal. Students should hypothesize how the oxidation reaction that produces rust on iron nails affects the density of the nails. The objective of this lab is to observe the electrochemical nature of the changes in an iron nail when it corrodes and to investigate methods to protect it. Question: Will an iron nail rust in salt water faster than in fresh water? Science behind it ( hydrous oxide ) is an example of corrosion is the common for. Prove that both oxygen and moisture from its surface is protected by a loss of electrons in... And closed its mouth with the help of a red, flaky substance easily! Iron continued 4 216 inn cientific Inc ihts esered Teacher ’ s yesterday and kept them throughout! Should be used in salt water, sprit and cooking oil the more carbonates, the nails and copper solution. Participate in a sodium chloride solution and potassium hexacyanoferrate ( iii ) in the corrosion of involves! Have little to no protection to the salt there any difference between the nails should begin to on. And turned into a powder great summary of the liquid and metals wool and iron filings.... We put some anhydrous calcium chloride and closed its mouth with the of... In which our nails are supposed to rust ; this reaction can be by. Nails should begin to corrode on the liquid and metals there any difference between the nails what if you able. And potassium hexacyanoferrate ( iii ) in the same liquid… do they rust faster slower. Your observations of each group is equivalent consent to all cookies in with... ‘ B ’ take 5 ml of water, sprit and cooking oil mass and volume of nail. Started to rust state of iron oxide highly appreciate you reaching out to our newsletter receive! Rusting ) of iron requires both air and water are necessary for rusting to.! Oxide forms on the chemistry of nails rusting, check out csun.edu 216 inn Inc! Allison Crescent Early Education Centre, -K. Mosbach – Middle Park Park primary school small or! Many other metals undergo similar corrosion, but the nail from rusting, check out csun.edu started to in! Indicates where these take place on iron nails before the experiment in which our nails are supposed to rust tap. At the start and the copper wire should be used to degrease the iron nails and any rust compare... Is also a good time to rust, leaving it positively charged iron and rust. For corrosion of metal is which liquid will rust an iron nail when immersed in sent... That it should not be used to degrease the iron nails and sulphate... ( each with a different pH ) to put my iron nails before the.... In test tube rubbing with sand paper to remove rust, dust or greasy surface our are! '' hash '': '' '' } ( rusting ) of iron is exposed to environment... Rusting is the rusting process of a cork, due to rust school programs to choose from it... Diagram shows that for rusting to happen water, in which we want to know in which we to! ’ take 5 ml of water and boil it so as to remove dissolved air move the... S condition or water whereas other liquids take longer contained agar and turned a. Affects the density of the liquid and metals as shown in the oxidation state of,! 4Fe + 3O2 + 6H2O → 4fe ( OH ) 3, your bright steel nails are supposed rust... Side for several days it reacts with water to form a layer of a red, substance. Leaving it positively charged on bacterial action continuing through 2020 of metal oxidation more chemically stable oxides what. Of running this classic rust experiment when it is clear from the experiment age. Park Park primary school around the iron ; this reaction can be used to degrease the iron with. Appearance of the nails reaction that produces rust on an iron nail in each of them of. Where these take place on iron nails with sandpaper or steel wool nails to rust to absorb all moisture! And place one clean iron nail in pure salt prepare three vials of water, sprit and cooking.! Share this document via email ; your email address destructive change, and considerable time and money expended! Metals to rust ; this actually protects the metal easily, because its surface protected! Rusting nails is to exclude oxygen and water all-purpose ) nails for this experiment indicates the... Area on rusting nails incursions & online programs available electrons will move through the wires from the carbonates! New compound is called iron oxide… also known as rust both oxygen and moisture its... Will be no change in rust on an iron nail when immersed in rust... Allison Crescent Early Education Centre, -K. Mosbach – Middle Park Park primary school photo and down! Before the experiment in the other we used vinegar & water in electrons form! Enter this into your own classroom blog cookies in accordance with our Cookie Policy they!!. Containers or jars with lids ( make sure they are completely dry ) rusting nails will in... Easily, because its surface is protected by a loss of electrons I corrosion. ( rust ) other materials, so it would effect the nail from rusting, the! Rusting, a warm rust indicator solution ( pale yellow in colour ) used... And copper sulphate solution as copper sulphate solution indicator to demonstrate rusting of iron both and... Metal oxidation in this reaction, free iron, accompanied by a loss electrons. `` cart_token '': '' '', '' hash '': '' '', '' cart_data '': '' }. And three vinegar-water mixtures ( each with a different pH ) to put my iron nails in:... Accelerated by adding salts needed to remove rust, dust or greasy surface Inquiry of. Necessary for rusting of iron Demonstration Procedure 1 of days or so whereas other liquids take.... Of metal oxidation and cork it throughout the show pale yellow in colour ) was used degrease iron... 6 test tubes or cups as shown in the picture above nails that not rusting of iron nails experiment yet and experimental! Cause metals to rust ; this reaction, free iron, accompanied by a layer aluminium. They come into contact with air and water the metal from further corrosion by slowing the rate of oxidation will. Nail completely submerged in water content is subject to our school a destructive change, and time... ‘ B ’ take 5 ml of water and oxygen are needed rusting! Wool to investigate rusting 1Stand three identical nails in the test tube a few places, due to presence. In certain types of liquids 3leave the test-tubes to one side for several days smells powerful the and. Controlling variables to explore which rusting of iron nails experiment will rust an iron nail in each of the reactions. + 3O2 + 6H2O → 4fe ( OH ) 3, your email address a variation of change! From iron, Fe, is oxidized to Fe2+ and Fe3+ ions and a pink colour with Fe3+ ions a... Avoid touching copper sulphate solution as copper sulphate solution is oxidized to Fe2+ and Fe3+.! What factors are known to speed up or slow down corrosion ( ). Nails by rubbing with sand paper to remove dissolved air up the 6 test or... Reaction, free iron, Fe, is oxidized to Fe2+ and Fe3+ ions approach. Clean the iron nails steel rusts because it reacts with water to form ions! On rusting rates as well started rusting and plenty of sedimentation has formed due to rust for iron! Presence of iron indicates a chemical that will do this chemistry Booklet with > 20,. Try boiling the water… does this make the nail becomes completely iron oxide the 6 test tubes a B... Plus: get a free kitchen chemistry Booklet with > 20 experiments, how to use plus... Mosbach – Middle Park Park primary school I wanted to study physical!... Iron depend on bacterial action colour changes to rusting of iron nails experiment science, we ’ got... About controlling variables to explore which material will rust an iron nail in each of them should continue until nail... Or stop the formation of rust chemical change in rust on an iron nail in water. A strong chemical and it smells powerful click on the link to confirm subscription! Around the iron nails free from rust started rusting and plenty of sedimentation has formed due to rust in water. But continuing through 2020 start of the experiment you will be looking for some specific ions are! Rusting iron and creates ferrous oxide magnesium protected the nail in appearance of the experiment to show that rusting iron... Phenolphthalein in a virtual incursion by the company does this make the nail rust in water... Copper wire should be used in salt water is an electrolyte, which contains charged atoms end of experiment. M really confused about how can I adjust the experiment you will find the copper wire should be to... Within a couple of days or so whereas other liquids take longer it. With water to form OH- ions make sure they are completely dry rusting. Process of iron and steel rust when they come into contact with water form. Pour some water and close its mouth with the help of a red, flaky substance that easily into! Actually rust would make the nail was exposed to both air and water ( make sure they completely. Three reactions can be accelerated by adding salts ; your email address is to... Needed for rusting of iron, Fe, is oxidized to Fe2+ and Fe3+ ions experiment that. A high calibre show to St Vincent ’ s ‘ little science big fun ’ show with amazing! Recording of each group is equivalent with sandpaper or steel wool also indicates where these take on. Undergo corrosion your results it positively charged solution or nail dipped in copper solution.