Today we discussed the effects of healthy and non-healthy drinks on our teeth.
We decided to plan an experiment to find out!

We planned an experiment using eggs. We found out that our teeth and egg shells are made from some similar materials. Therefore we planned a fair test using four different drinks.

First we poured the same amount of coca-cola, water, milk and orange juice into four clear cups.
We then added one egg to each cup.

Here is what the cups look like now:

We will take a look at them again in seven days to see the results.