Over the past week, Year 3 and 4 conducted a scientific investigation into tooth decay. They investigated the effect certain types of liquids have on their teeth. For the purposes of the experiment, five boiled eggs acted as teeth. Each egg was placed into a cup containing a different type of liquid: orange juice, apple juice, coke, water and milk. Each morning, over a five day period, pupils observed the eggs and noted down their findings. The results were very interesting and showed us the importance of eating a well-balanced, healthy diet and maintaining good oral hygiene.