question: What happens on the surface when iron rusts?
choices.text: it becomes orange it grows Extremes of temperature gas spreads in the air it flies destruction 295 degrees Kelvin it explodes
choices.label: A B C D E F G H
fact2: Chemically, iron is an active metal.
combinedfact: when iron rusts , iron becomes orange on the surface
formatted_question: What happens on the surface when iron rusts? (A) it becomes orange (B) it grows (C) Extremes of temperature (D) gas spreads in the air (E) it flies (F) destruction (G) 295 degrees Kelvin (H) it explodes