Year 4 – Lennon-McCartney – Science Experiment results

The results of our teeth decay experiment are in!
We discovered that water is the best liquid for our teeth and caused no decay at all. Milk changed coloured and thickened, orange juice and Coca Cola congealed and stained the shell as a result of the sugar. The vinegar caused the most damage, staining the entire shell brown from the acidity. The empty shell did start peeling slightly, showing us that it was still important to keep our teeth clean even if we drunk mainly water. We discussed how we could have these sugary in moderation, making sure that we cleaned our teeth properly at least twice a day and ate other healthy things alongside.

Here are some pictures showing the egg shells (representing the enamel on our teeth) after 7 days of being soaked in the liquids.

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