This week, Year 4 have been learning about tooth decay and the impact of not looking after our teeth.

They carried out an investigation to see how plaque acid effects our teeth. Eggshells are similar to tooth enamel, so they used different vinegar and water solutions to see if the shells would change over time.

The children made great predictions and observations and were fascinated to see how the vinegar egg’s shell peeled off after just 24 hours, leaving a soft inner layer – just like our dentine!

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