RUBBER EGGS
CLAUDIA MIQUEL
ANDREA LIDÓN
EXPERIMENT
• DESCRIPTION
SOAK EGGS IN VINEGAR TO INITIATE A CHEMICAL REACTION AND DISSOLVE THE
EGGSHELL.
• OBJECTIVE
CHEMICAL REACTION BETWEEN THE ACETIC ACID IN VINEGAR AND THE CALCIUM
IN EGGSHELLS.
WE WILL ADD HARD-BOILED EGGS TO DIFFERENT SOLUTIONS TO OBSERVE THE
CHEMICAL REACTION.
WITH THIS EXPERIMENT WE CAN EXPLORE ACIDS AND BASES AND CHEMISTRY IN
THE HUMAN BODY.
• MATERIALS
HARD-BOILED EGGS AND VINEGAR
MEASURING CUP
THINGS TO CONSIDER
• STARTED AT THE BEGINNING OF A WEEK.
• 3–5 DAY PERIOD.
• ELEMENTS ARE PURE SUBSTANCES
• EGGSHELLS CONTAIN CALCIUM CARBONATE
• VINEGAR IS A MIXTURE OF WATER CALLED ACETIC
ACID
EXPERIMENTAL PROCEDURE
Pour one cup of vinegar into a container (cup or jar)
Place an egg in the container. Make sure the egg is completely
submerged.
Allow the container to remain undisturbed for three to five days.
If necessary, add more vinegar to keep the egg submerged.
After three to five days, remove the egg from the vinegar and
gently rinse it with water.
THE ACETIC ACID WILL REACT WITH THE CALCIUM
THE EGGSHELL.
AS A RESULT OF THIS REACTION, THE
CARBONATE IN
VINEGAR COMPLETELY
DISSOLVES THE SHELL, LEAVING BEHIND THE SOFT AND BOUNCY
HARD-BOILED EGG, COVERED ONLY BY A THIN MEMBRANE.
WHEN A CHEMICAL CHANGE IS COMPLETE THE ACETIC ACID REACTS WITH
TO FORM CARBON DIOXIDE, CALCIUM
ACETATE, AND WATER. THE BUBBLES THAT FORM ON THE EGG ARE
CALCIUM CARBONATE
THE CARBON DIOXIDE AND ARE A SIGN THAT A REACTION IS TAKING
PLACE.
• CALCIUM CARBONATE
• ACETIC ACID
• CARBONIC ACID
THE OVERALL REACTION IS ...
BENEFITS
People also need calcium, to
support bone and tooth structure.
Milk are primary sources of
calcium.
In human diets. If we eating a wide
variety of foods with calcium, we
can help us to get the calcium that
we need each day to stay strong
and healthy.
• Likewise, too much acidity can
wear away at your tooth enamel.
The acids in soda pops, fruit juices,
and other types of highly acidic
foods and beverages can corrode
the calcium in your teeth, leading to
sensitivity, cavities, or other health
problems.
VIDEO
• HTTPS://WWW.YOUTUBE.COM/WATCH?V=FEYS5I5P7YY
QUESTIONS;
• DO YOU THINK THAT THE BUBBLES THAT FORM ON THE EGG ARE IMPORTANT?
• HAVE YOU EVER TRIED THIS EXPERIMENT AT HOME?
THANK YOU FOR YOUR ATTENTION!!!
