Too Easy

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Across
  1. 2. strong like iron
  2. 3. make it fade
  3. 6. unimportant
  4. 7. not normal
  5. 10. notice
  6. 11. all of a sudden
  7. 12. can't believe it; incredible
  8. 13. dark
  9. 15. let someone know
Down
  1. 1. burst
  2. 4. to go faster
  3. 5. surprised
  4. 8. beating like a heart beat
  5. 9. the cause of pain
  6. 14. flinched