Crossword: ABC of Safety: Always Be Careful

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Across
  1. 1. Never --- a chemical
  2. 2. I am more than a freezer, handle me with PPE otherwise I will bite.
  3. 5. reagents are extremely reactive to oxygen and moisture, which usually leads to spontaneous ignition
  4. 9. Supernatant of bacterial culture should always be disposed into—solution.
Down
  1. 1. is dangerous Because of uncontrollable pressure buildup in a fully closed system
  2. 3. does not differentiate between sense and antisense only help you to see DNA.
  3. 4. There is no --- with safety
  4. 6. almost accident
  5. 7. call --- for emergency in the laboratory
  6. 8. CAEIDYN what am I!