PLK CKY Y6 Chemistry crossword puzzle

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Across
  1. 2. The scientific name for burning
  2. 5. Safety equipment that we should always wear when using strong acids or alkalis
  3. 8. Physical changes are usually _________
  4. 9. The substances that get used up in a chemical reaction are called the ____________
  5. 11. A gas that is produced when a metal reacts with an acid
  6. 12. A type of change where a new substance is created
  7. 13. A type of strong acid that can react with sodium hydroxide to make sodium chloride and water
  8. 16. This substance turns milky when carbon dioxide gas is bubbled through it
  9. 18. Food item that contains acetic acid
  10. 19. A salt that is produced when calcium metal reacts with sulfuric acid
  11. 20. This is what we use to represent a chemical reaction in written form
Down
  1. 1. A property of strong acids that makes them dangerous
  2. 3. A type of strong acid that can be found in acid rain
  3. 4. The reaction of an acid with an alkali
  4. 6. This metal does not react with dilute acid
  5. 7. The colour that universal indicator turns in a neutral solution
  6. 10. This number tells us how acidic or how alkaline a substance is
  7. 14. In order for a fire to burn, this gas is needed
  8. 15. This means that there are a lot of acid particles in a relatively small amount of water
  9. 17. A type of substance that can tell us whether something is an acid or an alkali