The needle may be the only metal it may not affect it, like some other liquids, it may not rush unless the metal has been scratched deep. Rust is the reddish brown compound called iron oxide that forms when iron an oxygen react in the presence of water and air, hence the term oxidation. In the experiment you just wait and record which nail rusts faster. I need to explain why the salt … At the end of my experiment my hypothesis was … The name of my science fair question is will and iron nail rust faster in fresh or salt water. I feel it would corrode all of the metals. Salt and other substances put down to deal with icy roads greatly increase the rate at which rust forms on buildings, vehicles and other structures. The combination of moisture, oxygen and salt, especially sodium chloride, damages metal worse than rust does. FeO (OH) is the form of rust that we see most of the time and Fe2O3 is rust that has become dehydrated. saltwater and fresh water both contain oxygen, the iron nail will rust faster in saltwater because it contains more oxygen. Iron oxide, a reddish-brown compound, is normally referred to as rust. Salty water speeds it up even more. Variables to test. After 7 days, the one in fresh water started to turn green, but the salt water penny got shiny and clean. My hypothesis is: if an iron nail rusts in fresh water then it will rust faster in saltwater. The … Does iron nail rust faster insltor fresh water2. Then the wires were anodized for 30 minutes in … More on variables here. materials:two nail,two cup,salt water,fresh water,3. The purpose of my experiment was to find out if salt water rusts nails faster than freshwater and which type of nails, galvanized or common will rust quickly.The procedure involved sanding ten galvanized and common nails.The nails were placed in glass jars and added with 150mL of water mixed with 15mL of salt. The problem you'll be attempting to solve in this science fair project is which metals corrode the fastest, and under which conditions. In these experiments, students use steel wood pads to explore how rust occurs. Does iron nail rust faster insltor fresh water2. The reaction of iron and chloride underwater is also referred to as rust. I also learned that the mass is increased by the mass of the oxygen inside the iron. Likewise, bridges over salt water (such as the Golden Gate Bridge) need more regular maintenance. This science experiment is all about controlling variables to explore which material will rust an iron nail first. What do you think? This is one of the reasons that acid rain caused by pollution is so harmful. A thin film of oxide forms on the iron; this actually protects the metal from further corrosion by slowing the rate of oxidation. Rust (hydrous oxide) is an example of this change that results when iron is exposed to water or damp air. When they see that the ice cube melts faster in freshwater they’re so surprised Question: Will an iron nail rust in salt water faster than in fresh water? Aim: Investigating the rusting (oxidation) of iron. My hypothesis is: I think the iron will rust faster in the salt water than the fresh water and vinegar. Further, the role of salt is to provide an electrolyte which makes it so that the "oxidation and reduction" reactions - the REDOX reactions - involved in this process occur more easily. To speed it up metal objects can be immersed in water. Does An Iron Screw Rust Faster In Salt, Vinegar, Detergent, Or Plain Water? That is why the literature says that the salt water system should rust more iron. Secondary School. The title of my project is called On Your March, Get Set, Rust! Ask for FREE. The!process!of!rusting!involves!electrons!moving!around,!and!electrons!move!more!easily!in!salt!or! Problem! In the experiment you just wait and record which nail rusts faster. Cleaning & Laundry. Does A Plant Grow Faster In Salt Water Or In Fresh Water? We concluded that pennies rust faster in saltwater in a time period of 4 days . Where salt is present, electrochemical corrosion occurs, and the protective oxide film does not form, thus the corrosion (buildup of rust) continues unchecked. This combination corrodes, or eats away at, the metal, weakening it and causing it to fall apart. will!also!cause!rust.!However,!the!salthelps!the!electrons!move!around!quicker!so!iron! For my science project I decided I wanted to study physical sceince! This would mean notes and possibly pictures of anything s/he observes having to do with the amount of rusting; maybe any paper towels or coffee filters which were used to wipe away rust, or filter rusty water, etc. So you want to create iron oxide out of water plus iron. Join now. That is, iron exposed to dry air won't rust nor will iron placed in water with no oxygen. The project is about whether iron will rust faster in salt water than fresh water, so data collection means collecting any evidence that it does or doesn't. In the case of iron rusting, the new compound is called iron oxide… also known as rust! the first being pure distilled water, then a series with 2 tsp, 4 tsp, and 8 tsp of salt in 4 oz of water. Iron will rust faster in salt water than anything else, including steel or copper. kept constant using ice-salt water bath. The name of my science fair question is will and iron nail rust faster in fresh or salt water. I have several jars set up. I think this because electrons move easier in saltwater then they do in fresh water. DOES AN IRON NAIL RUST FASTER IN FRESH OR SALT WATER? You'll test five metals-silver, steel, zinc, copper, and aluminum-to see which corrodes fastest in water and in salt water. seawater!than!they!do!in!normal!water.!Water!is!the!enabler!of!fastoxidation!of!iron!so!freshwater! Fill up test tubes as follows: Test tube A is filled with boiled … My hypothesis is: if an iron nail rusts in fresh water then it will rust faster in saltwater. materials:two nail,two cup,salt water,fresh water,3. Join now. 1. Chemistry. If we put a penny in salt water then, the penny will rust faster than the vinegar and regular water because, we believe that salt water and copper have some kind of reaction together and made the penny rust faster . In our project, we tested rust rates of pennies. I am conducting an experiment concerning the rate of corrosion versus the amount of salt in water. Method. The rusting of iron is characterized by the formation of a layer of a red, flaky substance that easily crumbles into a … Log in. In fact they are so certain of this that they question why we’re even bothering to do this experiment. Carl H. wrote:My hypothesis was that if one penny was placed in tap water and one in salt water, the penny in the salt water would corrode quicker than the one in fresh water. Question Date: 2015-01-31. Rust that forms on iron, however, cannot protect the iron from further corrosion because it's too porous. Try boiling the water… does this make the nail rust faster, slower or is there no impact on the rusting time? While trying to answer … Answer: The corrosion of iron indicates a chemical change in the metal. In third … Salt water, as opposed to regular water, speeds corrosion on metals that are exposed to it. It forms when iron and oxygen react in water or in moisture in the air. Answer 1: Iron in fresh water will actually rust faster than in salt water. After a short time, I would expect the iron in the fresh water has a thin film after initial rust forms and protects it from any further rusting. I did my research and concluded that metal should rust faster in relation to the salt content of the water. Iron and steel rust when they come into contact with water and oxygen. when salt is in the water the iron corrodes faster. Hypothesis.I think that a nail rust faster in salt water because of the chemicals in the salt.4. Answer (1 of 4): I have done this project many times and I get the same answer..it creates an electrochemical reaction.. Normal tap water will only make a thin top layer of rust over the entire surface or until it can't rust anymore.. BONUS: You’ll also receive our Almanac Companion newsletter! Half fill two test tubes with water; Put an iron nail in one test tube and label it A and a steel nail in … An additional problem is that salt may be a factor that many protective paints and sealants don't defend against, and thus salt water may … This rust is formed from a redox reaction between oxygen and iron in an environment containing water (such as air containing high levels of moisture). Create your own unique website with customizable templates. Which liquid will rust a nail the fastest? This is all something that I am … ZIMSEC O Level Combined Science Notes: Experiment: Investigating the rusting of iron . i also think the color of the water will change to the rusty color. There are ways to speed up rusting and ways to slow it down. Certain factors speed up the rusting process, such as salt in the water. By Alex Muchinsky Coke, apple juice, orange juice, vinegar, or water! Chemistry. Someone said: Salt Salt, or sodium as it's referred to when it's a scientific element, makes the rusting process move even faster when it's present. I learned that when a nail rusts it gains weight. Salt water will cause corrosion faster because the salt will act as a catalyst steel up the change and erode the materials. Topic! I think it will take one week for the iron to rust in the salt water. Aluminium, on the other hand, does not corrode easily, because its surface is protected by a layer of aluminium oxide. Materials: 4 iron nails, 1 steel nail, a piece of copper/brass, 5 test tubes, cotton wool, solid calcium chloride, magnesium ribbon. Your iron nail will indeed rust more quickly and severely in salt water. However, the opposite is true. I think this because electrons move easier in saltwater then they do in fresh water. Ask Your Question Fast! In conclusion, I think that salt water will be the most corrosive liquid and the nail made … The orange juice was a good choice of solutions because acids … The wires were cleaned by scrap- ing the surface carefully with a fine abrasive paper. But the salt water will rust a thin layer over the entire surface and then make rust under that layer and ; then under that layer ect.. Salt is composed of sodium ions (Na) and chloride ions (Cl) that dissolve to made charged ions (Na+ and Cl-). Water is the enabler of fast oxidation of iron so freshwater will also cause rust. Which liquid will rust a nail the fastest- water, coke, apple At the end of my experiment my hypothesis was correct because the nail in the saltwater was the first to rust. Where salt is present, electrochemical corrosion occurs, and the protective oxide film does not form, thus the corrosion (buildup of rust) continues unchecked. ! Lets take as a given that rust is iron oxide. They rust faster in salty water or acid rain. However, salt water is a very good conductor (lots of dissociated ions) and s… 1. Your iron nail will indeed rust more quickly and severely in salt water. (nails)!will!rust raster!in!saltor!seawater!than!fresh!water. Acid Rain Although all rain will speed up the rate of corrosion, acid rain will accelerate it much more. Rusting of iron refers to the formation of rust, a mixture of iron oxides, on the surface of iron objects or structures. Community Experts online right now. Hypothesis.I think that a nail rust faster in salt water because of the chemicals in the salt.4. I can't find anything to explain why the salt water penny didn't corrode. It literally takes a really long time for copper to rust. where salt is used to prevent roadways and walkways from becoming icy, so they are absolutely certain that the ice cube will melt faster in saltwater. Custom programming and server maintenance by. Log in. In your son's experiment, the salt (NaCl) provided the highest concentration of electrolytes to allow movement of the electrons from the solid iron to the oxygen atoms, so rust was able to form quickly. Iron rusts faster when exposed to salt water, which is why salting snowy roads is hard on cars. The following experiment investigates the conditions necessary for rusting to occur. Copper never rusts. Saltwater corrodes metal five times faster than fresh water does and the salty, humid ocean air causes metal to corrode 10 times faster than air with normal … Not all metals rust. One penny was 1969 and one was 1972 so they are of the same composition. The simulated sea-water was frozen in a refrige-rator before being used. Will the water color change while the iron rust? 3. Fe (OH)3 is rust that forms under water. 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