fire and air

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Across
  1. 2. the most common form of oxygen and what you find in the wild
  2. 5. one of the three things needed to make fire(the one emitted)
  3. 6. you can use this as heat to start a fire (can be made bY a flint and steel)
  4. 8. were there is not enough oxygen in the combustion
  5. 10. emitted by fire
Down
  1. 1. what happens when heat fuel and oxygen combine
  2. 3. you breath this
  3. 4. the most common of elements in our atmosphere
  4. 7. the most common form of combustion(you sit around it)
  5. 9. the most common name foratmosphere