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The Bouncing Egg: Science Project
Transcript of The Bouncing Egg: Science Project
(Vinegar’s primary chemical resource) and
that the shell might dissolve, we predict
that the egg might bounce and resist at
least a fall from the distance of one foot. Hypothesis: The shell of the egg is made mostly of calcium
carbonate (like chalk). Vinegar dissolves the
calcium in the shell. The gas that is created as
a side effect causes the bubbles that will rise
from the egg. Vinegar has, among other things,
a chemical material called Acetic Acid (Vinegar
bottles contain approximately about 15% of
acetic acid). Calcium carbonate in the eggshell
reacts with vinegar to form carbon dioxide
(can be seen as bubbles in the cup of the egg/
vinegar). Background Information: What You Need:
used raw eggs - 2 white)
1. We place an egg in our container. Pour white
vinegar over it.
2. Leave the vinegar covered egg alone for 3 to 4
days. We notice some tizzing as the vinegar interacts
with the egg.
3. After the days have passed, we removed the egg
from the vinegar. We noticed that the eggshell has
disappeared. The egg felt very rubbery.
4. We dropped our egg from about a foot high. We
noticed that really bounces. Method Our results came out to be positive and correct. We got to see how powerful the reaction of the acid made the eggshell disappear which left the egg soft and rubbery. Results: In conclusion, our hypothesis was correct. We were perfectly able to make the egg bounce using the vinegar. This happens due to the acid found in vinegar which removes the shell leaving on the membrane or skin. This allowed the egg to "bounce." Conclusion: