(Fig1) For coke, the Mass of the marble dropped from 0.204g to 0.200 and fluctuated at 0.200 for the rest of the experiment.
This means that coke is in fact, is corrosive to our teeth when it is just opened. After while when coke is not fresh and bubbling, it becomes less corrosive, however when it is just opened it can be very corrosive.
This is so as from the graph above, the marble lost a drastic amount of mass for day 1 only when the coke was just opened, after that, its mass remained constant.
Therefore, we can derive that coke, to a certain extent, is bad for our dental health. When coke is fresh, it corrodes teeth, but after the coke is opened for one day, it loses its corrosive effect and does not affect teeth thereafter.
For water, we can conclude that it does not really corrode teeth as the difference from the start and the end of the experiment is just 0.001g.
Therefore we can derive from this that water is not harmful to teeth.
For vinegar, it is clear that vinegar is extremely corrosive as it totally disappeared in day 2.
Therefore, vinegar is extremely harmful to teeth as seen from the experiment.
Considering the factors of human error and inaccuracy, it was decided that tea is non-corrosive to teeth as the marble’s mass in the tea remained constant for most of the parts.
The final measurement is same as the first experiment, therefore no change in mass is observed from the first day to the last day.
Therefore we can derive from this experiment that tea is not harmful to our dental wellbeing.
For orange juice, the marble was constantly on the drop.
Notice the trend of the rate of decrease of the mass of the marble. From this we can conclude that orange juice becomes more and more corrosive overtime.
Therefore we can conclude that orange juice is not good for dental health.
(Fig.5) For coffee, we concluded that coffee does not corrode teeth as from above we can see that the mass of the marble remains around 0.270. No significant change in mass was observed.
Therefore, from fig. 5 we can conclude that coffee is not good for our dental health.