4ES have been learning about teeth and tooth decay. So … we had to do an experiment to see which liquid had the worst effect on teeth (egg shells).
The children made their predictions:
The children predicted that it would be cola (they were right!) but over the week we recorded our observations as to how the different liquids affected the egg shells. Our control variable was egg shells in water – this did not change.Our five liquids were: Water, milk, orange juice, apple juice and cola.
Day 2: Apple juice
Day 2: Cola
And by day 6.Day 6: milk
Day 6: Apple Juice
Day 6: Orange juice
Day 6: Cola