### Have of time to set up for a

Have you ever decided to buy balloons ahead of time to set up
for a party? Or brought balloons for a special occasion and after a day it
deflates? Even though we know balloons do not last forever, we would hope for
it to last for a good amount of days. The reason behind the deflation is the
material latex. Latex is a rubber used to make balloons. It contains tiny holes
in it which allows the helium to leave the balloons. Stemming off to my
project, the purpose of this project is to determine the rate of lift decay.
The objective is to measure how the amount of buoyancy changes over time in
latex balloons. Will the helium leave the balloons at a constant rate or a
non-constant rate? I hypothesize that the helium will leave the balloon at a
non-constant rate. I believe this because a balloon cannot lose the same amount
of air each time its weight is taken. The materials used for the project were metal spoons,
masking tape, permanent marker, digital scale, latex balloons, scissors, lab
notebook, graph paper and ribbons. In this project, the independent variable is
the weight of the sets and the dependent variable is the amount of helium that leaves
the balloon over time. The controlled variables are the spoons, balloons and ribbons.

When it comes to party planning, the decoration everybody runs
to are balloons. Their vibrant colors welcome guests and makes the event fun
and attractive. They come with different sayings, sizes, shapes and ribbons
that makes the event festive. The bad part about balloons are that they deflate
in a wink of time, especially when trying to set up ahead of time. A sagging
balloon takes the celebrate out of celebration. The force that keeps the
balloons in the air is buoyancy. Buoyancy is the tendency of an object to float
on water or in air. How does the amount of buoyancy change over time in latex
balloons and will the helium leave at a non-constant rate or constant rate? What
is the rate of buoyancy loss?

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The main question most people have when they see their
deflated balloons are “What makes balloons deflates?” There are many factors
that trigger the deflation of balloons. One factor is the way the balloon is
inflated. You may be shocked to hear that the way a balloon is blown up can
affect how long it lasts. Helium filled balloons tend to last much longer
because helium balloons contain tiny helium particles while mouth blown
balloons contain mostly nitrogen and oxygen. Single nitrogen and oxygen atoms
are already much larger and more massive than helium atoms, plus these atoms
bond together to form N2 and O2 molecules (Helmenstine, A.
M.). That is why helium filled balloons deflate faster than air filled
balloons. Another factor that affects the rate of lift decay is the material
used to make balloons. As stated in the abstract, the material latex is a
rubber material that contains tiny holes. The tiny holes are called porous’. Another
material used to make balloons is mylar. Mylar balloons have less porous’,
which makes them last long.

Who discovered buoyancy? How was it introduced into the
world?  The person behind that is Archimedes of Syracuse. He was a
mathematician, physicist, astronomer, engineer, and inventor in Syracuse,
Italy. He
was born on 281 BC and died on 212 BC. Just like how we believe Sir Isaac
Newton had a moment of genius when the apple fell on his head, we believe that
Archimedes had a similar experience. The story goes that when Archimedes was in
his bathtub thinking about that challenge when out of nowhere, it struck him!  He was so happy that he jumped out of the
bathtub and ran down the streets naked shouting “Eureka!” The idea that struck
him was that the principle of buoyancy holds that
the buoyant or lifting force of an object submerged in a fluid is equal to the
weight of the fluid it has displaced (Gale, Thomas 2006). This idea is also
known as Archimedes’ principle. The way Archimedes figured this out was by
helping King Hieron II of Syracuse figure out if the crown made for him was made
of pure gold. The experiment he conducted was weighing the king’s crown, a
block of gold, and a block of silver. He plunged each of the objects into water
and watched the water rise. By including the objects into his equation, the
result of his experiment was that the crown was less dense than the gold but
denser than the block of silver. Concluding that the crown was made of
different metals.

Did you know that if you leave a balloon in a hot car, it
will pop? Due to the fact that the air inside of the balloon is slowly
increasing, the air inside the car pushes more force on the walls of the
balloons and the walls of the balloon inflate to allow the incoming air. Sooner
or later there will be too much air in the balloon and the walls will expand
too much therefore making the balloon pop. If hot air can affect a balloon,
what can cold air do to it? Temperature can affect the density of a balloon and
how high it rises. Just like how hot air pops a balloon, cold air shrinks a
balloon. When temperature drops, the air molecules move slower and closer
together. That is why the balloon looks deflated. The amount of gas inside the
balloon is less so the walls of the balloon contract. So, if you are deciding to
leave your balloons in a hot car, you might want to change your mind.

Buoyancy’s change over time effect latex balloons by allowing
helium to escape at a constant rate or non-constant. The factors that make
balloons deflate are the material it is made of, for instance, latex and mylar.
One has less porous’ than the other which makes the air leave the balloon
faster. The reason that we know about buoyancy and how it works is because of
Archimedes. He figured out that if the weight of the object is more than the
density of the water, it will sink, and if the objects weights less than the
water, it will float. Temperature

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