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Good Morning! Begin with this Warm-Up on your Warm-Up page!. Iron is a solid, gray metal. Oxygen is a colorless gas. When they chemically combine, rust is made. Rust is a reddish-brown color. Why is rust different from the iron and oxygen that it is made of?. Friday 1-11-2013.
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Good Morning!Begin with this Warm-Up on your Warm-Up page! Iron is a solid, gray metal. Oxygen is a colorless gas. When they chemically combine, rust is made. Rust is a reddish-brown color. Why is rust different from the iron and oxygen that it is made of? Friday 1-11-2013