Wednesday, September 12, 2012

Baking soda volcano


  • 4 cups flour
  • 2 tsp salt
  • 3 tsp cooking oil
  • Warm water
  • Plastic soda bottle
  • washing detergent 
  • Food coloring
  • Vinegar
  • Baking dish
  • baking soda
  • Mix 4 cup of flour, 2 tsp of salt, 3 tsp of cooking oil and warm water.  Make them dough.
  • stand the soda bottle in the baking pan and mold the dough around into a cone shape. Don't cover the hole.
  • Fill the bottle with warm water and a pinch of orange food color.
  • Add detergent to the bottle.
  • Add 2 tsp of baking soda to the liquid.
  • Slowly pour vinegar into the bottle.
  • Watch out- eruption time.

       The chemical reaction between the baking soda and vinegar. in this reaction carbon dioxide gas is evolved. The same reaction present in real volcanoes also. 

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