FIX

123456789101112
Across
  1. 2. Single-celled, prokaryotic organisms
  2. 4. A birds have scales on their wings
  3. 8. The substance known by the chemical formula NH3
  4. 9. How many stars has the American flag got?
  5. 11. A device for measuring temperatur
  6. 12. Body parts, to listened
Down
  1. 1. Destroying all bacteria with high temperature for a long time
  2. 3. The planet is nearest the sun
  3. 5. Girl or woman wear them on their neck
  4. 6. How many kidneys does a normal person have
  5. 7. device used to measure the air pressure
  6. 10. How many stars feature on the flag of New Zealand?