chemistry

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Across
  1. 2. what's the noxious gas in cigrette
  2. 4. what's the composition of diamond
  3. 6. Supporting gas for most of the living creature
  4. 7. The building element in your bone
  5. 9. The radiated element that function as source of nuclear fuel
  6. 10. 1st element in the periodic table
Down
  1. 1. what's the name of the liquid without color,smell or tase and it's used for drinking
  2. 3. The element be honored as a 'curing element' and has the same pronunciation as chinese word heart.
  3. 5. The general name of substance used to digest food in your stomach
  4. 8. It is the name of a planet and also the name of an element