Have fun with the kids making this tasty sweet shop favourite, grab a lolly and dip it in your own, home made sherbet!
You will need:
1 tsp citric acid
1 tsp baking powder
2 heaped tbs icing sugar
A bag, cup or envelope!
Put the citric acid, baking powder and icing sugar in your cup/bowl/envelope and mix it together by stirring or shaking . Take a pinch and put it on the tip of your tongue. This is where you may need to vary the ingredients a little. If it is too sour add more icing sugar, if it doesn’t fizz try adding a little more citric acid or bicarb.
The science bit:
The fizzing on your tongue is the result of a chemical reaction in your mouth! The combination of an acid (citric acid) and an alkaline (baking powder) with saliva mix to create a gas (carbon dioxide), which is lots of tiny bubbles popping on your tongue!
Citric acid is the sour part and is found in citric fruits such as lemons, limes and oranges. The icing sugar is just to make it taste yummy!