8E Fuels and Oxidation

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Across
  1. 1. A metal compound which has combined with oxygen in a chemical reaction, e.g. magnesium oxide.
  2. 3. The variable that is measured in an investigation.
  3. 4. Reacting with oxygen.
  4. 7. Fire _____________________ is used to put out a fire.
  5. 9. A compound of a metal or non-metal with oxygen.
  6. 11. Any factor that affects the experiment.
  7. 12. A type of combustion when a substance reacts only partially with oxygen (e.g. producing carbon monoxide)
  8. 13. variable that needs to be kept constant.
  9. 15. The law of c______________ of mass. Mass is not lost or gained during a chemical reaction.
Down
  1. 2. A reaction that gives out energy.
  2. 5. Fire __________a diagram that heat, fuel and oxygen are needed for fire.
  3. 6. Any element that is shiny when polished, conducts heat and electricity well.
  4. 8. The variable we change in an investigation.
  5. 10. A f____ test is an experiment in which all the control variables are kept constant.
  6. 14. Any element that is not shiny and does not conduct heat and electricity well.