Acid Test in Junior Infants

In winter we eat and drink more.  We wanted to test our favourite drinks for acid.  We know that acid is very bad for our teeth and we should wash our teeth after having something that contains acid.  First we needed some PH neutral water.  eacher chopped a red cabbage in half and poured hot water over it, we left it to cool.  That left us with this purple water. 

Then we tested a variety of drinks to find out if they contained acid.

We also tested water and milk. 

 

 



Some children were surprised at the results.  We found 4 of the drinks we tested turned the water pink that means they contain acid and therefore we should brush our teeth after drinking them.  Apple juice, orange juice, ribena and coke all made the water turn pink.