Tuesday 2 October 2012

Valcanoes in Science

On Monday in science class we made volcanoes.Before we made our volcanoes we had to learn some theory about acids and bases.I learnt that when you mix an acid and a base you create a salt and water.When making our volcanoes we got to wear white lab coats!
To make our volcanoes erupt we used baking soda and vinegar.To make the cone of our volcano we made dough using flour,water and green food colouring and covered a bottle with it.
When our volcano was ready we poured hot water and red food colouring into the bottle;then we added lots of baking soda and the vinegar.I didn't think it would work because anytime I try make a volcano at home it doesn't;but it did.
After we had cleaned up(which took a while because flour was everywhere) we made posters describing the reaction between the acid(the vinegar) and the base(the baking soda).It was a great science class and I can't wait until next week to see what experiment we do!

Our vocano didnt turn out as goos as this one but it was something like it!

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