Crossword - 23

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Across
  1. 4. What grows quicker—hair or toenails?
  2. 5. In which country did the chess originate?
  3. 7. Oxygen liberated during photosynthesis is coming from
  4. 8. What is not a component of chlorophyll? Nitrogen or Calcium?
  5. 9. Your blood type is determined by the genes you inherit from your parents: True or False?
  6. 10. What is the shape of a brick?
Down
  1. 1. Which planet is the smallest: Neptune, Mars, Mercury?
  2. 2. Is the temperature of the moon higher or lower during the day?
  3. 3. Onion (Allium cepa) is a modified form of?
  4. 6. Which device in mathematics consists of beads?