We have been learning about oral hygiene for Science in May. We had a dentist visit us and teach us all about keeping our teeth clean and healthy. We also did an interesting experiment. Egg shells have calcium in them just like our teeth so we soaked boiled eggs in different drinks and observed the effects on the eggs. We used water, milk, orange cordial, lucozade, Coca Cola and Coke Zero. The Coke Zero had the most visible impact on the shell and both the milk and water had no visible impact on the shell. We had predicted that the Coca Cola or the lucozade would be the worst.
