Crude Oil

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Across
  1. 3. As the boiling point of a fraction increases the flame becomes...
  2. 6. What can also be found with crude oil?
  3. 7. Whats the name for when hydrocarbons burn without enough oxygen?
  4. 8. The combustion of hydrocarbons produce water and...
  5. 10. What is crude oil a mixture of?
  6. 11. As the boiling point of a fraction increases the fraction becomes... (lighter/darker)
  7. 12. What is the scientific name for tarmac made with crude oil?
Down
  1. 1. What method is used to separate crude oil?
  2. 2. What does CO stop the red blood cells from doing?
  3. 4. What's is crude oil made out of?
  4. 5. Hydrocarbons have different...
  5. 9. What are the hydrocarbons in crude oil known as?