Science

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Across
  1. 3. Three carbon molecule formed in cytoplasm
  2. 8. The gap between two neurons is called
  3. 9. Most widely used method for refining impure metals
  4. 11. Metal which is the best reflector of light
  5. 12. Balloon-like structure in lungs
  6. 14. Used by the nervous system to tranmit messages
  7. 15. Respiratory pigment in human beings
Down
  1. 1. 1.44 is the refractive index of
  2. 2. Diameter of the mirror
  3. 4. Used as an oxidising agent in chemical industries
  4. 5. Process of forming a thick layer of aluminium
  5. 6. Aqueous solution of sodium chloride
  6. 7. Bases which are soluble in water
  7. 10. The _____ of lens is represented by letter P
  8. 13. Non-metal which is a liquid