Wednesday, March 14, 2012

Naphthalene Balls Dancing


  • 500 ml beaker
  • 400 ml water
  • Sodium bicarbonate
  • Citric acid
  • Naphthalene ball
  • Take a 500 ml beaker add sodium bicarbonate ,citric acid and 400 ml of water. Cover the beaker with lid.
  • Put naphthalene balls into the solution. The balls go up and down. It's look like a dance.
WHY ? 
            Sodium bicarbonate react with citric acid to evaporate carbon dioxide gas. So that the naphthalene balls going up and down. 

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