Wednesday, 5 September 2012

SIMPLE SCIENCE FAIR EXPERIMENTS: Want a Volcanic Eruption of Your Own Which is Not Harmful?

HOW TO MAKE VOLCANO OF YOUR OWN WITH KITCHEN ITEMS.

Kyamelia Mandal
class 11 B
roll no. 04.


      It's fun to have a volcano of your own. Oh,wait! It's not going to erupt against your wishes.
      HAPPY EXPERIMENTING, CHEERS! :)



The Ingredients.
INGREDIENTS:
  • Baking soda.
  • Vinegar.
  • Detergent.
  • Flour.
  • Oil.
  • Salt.
  • Water.
  • A small empty drink bottle.
  • Food-Colouring Agent (Optional).



PROCEDURE:

1. Mix together 3 cups of flour, 1 cup salt, 1 cup water and 2 tablespoons of cooking oil. 

Mixing the Ingredients.
2. You can add a few drops of food colouring to make it volcano coloured.

3. Fill the empty drink bottle mostly with hot tap water. 

4. Add a pinch of dish-washing detergent and 2 tablespoons baking soda. A few drops of food colouring can be added too.

5. Set the drink bottle in the center of the pan or deep dish. Press the dough around the bottle and shape it like a volcano.

 6.  Do not plug the opening of the bottle.

7. Pour some vinegar into the bottle which contains hot water, dish-washing detergent and baking soda.

8. The eruptions start now.For more volcanic eruptions add vinegar and baking soda.
Your Volcano is ready! 



THE SCIENCE BEHIND THIS EXPERIMENT:




Acetic acid (a weak acid) reacts with and neutralises Sodium bicarbonate (a base). The Carbon dioxide that is given off is a gas. Carbon dioxide is responsible for the fizzing and bubbling during the eruption.

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