NAME:
TEACHER: MS. VENTI
CLASS: X SCIENCE
SUBJECT: CHEMISTRY
TOOTH DECAY
EXPERIMENT
Tooth enamel is tough but can be eroded by sugar in beverages and acids in your mouth. This
fun tooth decay experiment with egg shells is all about teeth and how to keep them healthy. We
can’t experiment on our own teeth so are using eggs to represent them, as the shell of an egg is made
of a similar substance to tooth enamel!
Research Question: Can sugary or acidic beverages really weaken teeth?
Objective:
Since egg shells are similar to tooth enamel, examine examine egg shells soaked for 3 days in various
beverages to see if the sugary and acidic beverages weaken tooth enamel.
Materials:
5 Eggs
5 Plastic Cups
Coffee
Lime
Fizzy drinks
Vinegar
Mineral Water
Variables:
control:
independent:
dependent:
Observations:
Conclusions:
Hypothesis:
Procedures:
Label each cup with the type
of liquids
Put a raw egg into each cup
Pour the same amount of fizzy
drink, vinegar, lime water and
coffee into your cups
Leave for approximately three
days (72 hours)
Take the eggs out from cups
Record your observations
Questions:
What happened to the egg
shells that were soaked?
Based on what happened to
the eggshells in your
experiment, which drinks do
you think are best for your
teeth? Why?