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Description
An iron nail is a small, thin piece of metal with a sharp point on one end and a flat end on the other. It's used as a fastener in construction and woodworking. Explanation Iron nails are made of iron, which is an element. Most nails today are made of steel, which is mostly iron with other materials added to improve strength, corrosion resistance, and other properties. Iron nails sink in water because they're denser than water. Iron nails are attracted to magnets. When dipped in copper sulfate solution, iron nails develop a brown copper coating.