Crossword Quiz

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Across
  1. 3. It is measured in terms of half-lives
  2. 4. Rays used for diagnostic in nuclear medicine
  3. 6. Plants receive their nutrients mainly from
  4. 9. A measure of the acidity of a solution
  5. 10. Sum or difference of two irrational numbers
  6. 11. Element with the greatest number of allotropes
  7. 13. It is also known as baking soda
  8. 14. line intersecting a circle in two points is called--
  9. 17. Bio molecule vital to living things
  10. 18. Polymers of amino acids
  11. 21. vitamins is also known as ascorbic acid
  12. 22. Protein present in blood
  13. 24. The fourteen elements in the bottom row
  14. 25. An alloy that contains mercury.
Down
  1. 1. Triangles have the same side lengths
  2. 2. Metal in the first column of the periodic table
  3. 5. A substance that can act as an acid or base
  4. 7. Part of the human respiratory system
  5. 8. A measure of the resistance of a fluid
  6. 12. These gases are very unreactive
  7. 15. Acid found in vinegar
  8. 16. Absolute temperature unit
  9. 19. A diatomic yellow-green poisonous gas
  10. 20. A circle can have ---parallel tangents at the most
  11. 23. A reaction that releases energy