science crossword puzzle

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Across
  1. 2. organ that makes and destroys substances
  2. 5. can be formed into different shapes
  3. 7. the material which does not let electricity to pass through
  4. 9. reflected sound
Down
  1. 1. substance that carries oxygen
  2. 3. insoluble substance formed when 2 soluble substances react together
  3. 4. instrument used measure current
  4. 6. when a astral body covers another astral body this happens
  5. 8. the particles are closely packed