Affixes puzzle

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Across
  1. 2. sound
  2. 6. not happy
  3. 7. all present
  4. 9. one type
  5. 10. over look
  6. 11. Someone who works on the heart
  7. 12. study of the stars
  8. 13. view again
  9. 14. middle of the night
  10. 15. ten years
Down
  1. 1. three circles
  2. 3. earth form
  3. 4. turn again
  4. 5. in front of head
  5. 8. false science