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Materials Required
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* 2 tablespoons of baking soda,
* Half a cup vinegar,
* Food coloring of any colors (red, orange, yellow, green, and blue)
* Sand or mud
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Method
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- Go outdoors and ask the child to build a volcano out of sand, leaving a hole in the center top.
- Add 2 tablespoons baking soda, Half a cup of vinegar and some food coloring in the hole. Red would be the most ideal color.
- Just ask the child to watch what happens and enjoy it.
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What is Learnt
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An alkali(baking soda) combines with acid(vinegar) to give out carbon-di-oxide that froths and comes out as a red volcano.
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Conclusion
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The liquid inside erupts as a red volcano due to the reaction of vinegar and acid with baking soda an alkali.
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