Thursday, 20 June 2013

My volcano

 On this Saturday and Sunday I'm going to be making a volcano.I'm going to make it out of paper mache  I'll paint it brown in it ,I'm going to put sodium bicarbonate and vinegar in it.
Vinegar is an acid and sodium bicarbonate is a base.When they react together they make carbon acid ,which is unstable and then makes water and carbon dioxide that makes the  fizzing.

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