revision crossword

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Across
  1. 5. the most common element in the atmosphere
  2. 6. the first governor of Quebec
  3. 8. can only be scratched by itself
  4. 9. an alloy made from iron and carbon
Down
  1. 1. is written as"f(x)"
  2. 2. is equal to 1m cube
  3. 3. the last step of the scientific method
  4. 4. the main part of blood
  5. 7. the last french city in north America in 1760