The reddish brown coat that covers each old iron nail is called __________., brass, rust, coating, shiny, An iron nail is dipped into rain water for a few days. What happens to the iron nail?, The iron nail remains shiny, The iron nail becomes smaller, The iron nail becomes rusty, The iron nail dissolves in water., Which object can rust?, The car exposed to rain water rusts after a few days. What causes the rusting of the car?, Presence of both air and water, Presence of dry ice, Presence of dry air, Presence of oxygen-free water, Which is an effect of rusting on an iron pole?, The iron pole becomes covered with a black coat., The iron pole becomes covered with brown mud., The iron pole becomes covered with a reddish brown paint., The iron pole becomes covered with a dirty, rough reddish brown coat., The reddish brown coat on the surface of plastic., The reddish brown coat on the surface of iron., The reddish brown coat on the surface of aluminum., The brown coat on the surface of wood., Objects made from ________ can rust., iron, wood, rubber, glass, What if an iron nail is placed in dry air. What is the observation after one week?, The nail does not rust, The nail becomes smaller., The nail becomes easily broken., The nail becomes coated with a reddish brown substance.

Rust

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