Poison Crossword Puzzle

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Across
  1. 4. Queen of poisons. Cannot be detected in a regular testing
  2. 6. extracted from the seeds of the nux vomica tree
  3. 9. Caused the Jamestown murders
Down
  1. 1. Is dangerous when it is vaporized. Starts with an m.
  2. 2. in some countries is available in rat poisining
  3. 3. Can be in your toys and from a pencil.
  4. 4. Used to poison rivals in Roman times.
  5. 5. extracted from the juice of berries.
  6. 7. Used to make people pass out in movies. The victim breathes it in.
  7. 8. Monoxide Comes from cars exhaust.