Mr O’Brien’s First Class conducted an experiment to see the effects of different drinks on teeth. We used eggs instead of teeth (we don’t want to put the tooth fairy out of business). We used water, milk, orange juice and cola. We predicted that cola would be the worst for our teeth. We left the egg overnight and the next day we checked the eggs. We found that the orange juice was the worst for our teeth, it had eaten into the outer coating of the egg. The boys and girls now understand the importance of brushing their teeth twice a day.


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