1) Which conditions are required for iron to rust? a) Water and salt b) Water and acid c) Acid and salt d) Water and Oxygen 2) The addition of oxygen is also known as... a) Oxidation b) Reduction c) Oxygen grabbing 3) What is the chemical name for rust? a) Iron Oxide b) Hydrated Iron (III) Oxide c) Hydrated Iron (II) Oxide 4) Which of these will increase the rate of rusting? a) Sugar b) Salt c) Sunlight 5) Which of these is not commonly found in a car? a) Copper b) Steel c) Lead d) Glass 6) Which of these is an advantage of using aluminium for car bodies? a) It doesn't corrode b) It does corrode c) It is very dense 7) True or False: Alloys have the same properties as their constituent metals. a) True b) False 8) Which of these is not an advantage of recycling? a) It requires less energy b) Avoids damage to the environment c) Reduces amount of waste in landfill d) It is difficult to separate all materials 9) Why should we steel for car bodies? a) It is less dense than aluminium b) It is more expensive than aluminium c) It is stronger than aluminium 10) True or False: A car with an aluminium body will use more petrol than a car with a steel body. a) True b) False

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