Science Crossword

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Across
  1. 2. puts out energy
  2. 4. a way to write how a reaction works
  3. 6. expresses the acidity or alkalinity of a substance
  4. 10. turns litmus blue
  5. 11. ph of 7
  6. 13. a reaction that neturalises the acids and bases
  7. 14. can only be brought over the age of 18
  8. 15. fire
  9. 17. a fuel devised from living matter
Down
  1. 1. changes colour depending on ph level
  2. 2. takes in energy
  3. 3. ph under 7
  4. 5. changes colour depending on the amount of acids or bases in the substance
  5. 6. used by plants to convert light energy into chemical energy
  6. 7. an equation to show what the reactants produce
  7. 8. coal or gas
  8. 9. a white substance that is found in our sea water
  9. 12. formed by natural processes
  10. 16. same amount of atoms of each side of the equation
  11. 17. ph over 7