Tuesday, 1 September 2015

Making Fizzy Sherbet

Today Kotuku class worked in groups to make fizzy sherbet.  We knew that the icing sugar was probably for sweetness and that the jelly crystals would add flavour.  We found out that citric acid is a natural acid that comes from fruit and is used to give tartness in drinks and sweets.  We thought that the baking soda was probably the ingredient that makes sherbet foam and fizz in our mouths.

Everyone enjoyed making it and it tasted delicious.  We used a lollipop and our fingers to taste our sherbet.  We also found out that the citric acid dissolves on our tongue because of our saliva.  The citric acid and the baking soda mix together and create a gas called Carbon Dioxide.  This gas makes bubbles that foam and fizz on our tongue.

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