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Where Do Planets Come From Essay

1349 words - 5 pages

Justin Zhong
Ms. Ljoka
2nd Annual Holy Spirit Science Fair
February 21, 2013
Where do planets come from? Abstract Astronomers have spent many centuries wondering how our solar
system and its planets came to be. We could only see the end result of
planet formation, not the process itself. And we had no other examples
to study. Even with the knowledge gained about other solar system, we
were left to wonder, are there other planetary systems out there, and did
they form like ours? This project leads you to find out how mighty plan-
ets are formed from cosmic dust. The red beans (dependent variable)
were tested in the vacuum chamber with Earth's gravitation pull and
without the gravitation pull (independent variable) by pouring water into
the chamber (buoyancy counteracts gravity). My hypothesis was that
without the Earth's gravitation pull, the particles would clump up; and
with the gravitation pull, the particles would just remain the same. The
Zhong 1

experimental results supported my hypothesis by showing that in the
gravity-free condition, particles don't float apart, they clump up together.
People think space as being something very distant and remote. It's
light-years away, hugely distant from us. That's completely wrong. We
are their children. They literally put us together. We are star stuff, with-
out them, we couldn't exist.
Variables Independent Variable: With the Earth's gravitation pull or not. Dependent Variable: Red beans.
Hypothesis With the Earth's gravitation pull, the particles will remain the same; without the gravitation pull, the particles will clump up.
Background Research For centuries, astronomers and philosophers wondered how our so-
lar system and its planets came to be. As telescopes advanced and space
probes were sent out to explore, we learned more and more about our so-
lar system, which gave us clues to how it might have taken place. (Hub-
ble Site)
What is a planet? There have been many attempts to define the
term "planet" over the centuries, but to date there is still no universally
Zhong 2

agreed-upon scientific definition of the term. Generally speaking, how-
ever, a planet usually refers to an object that is not a star (that is, has no
nuclear fusion going on in its core); that moves in orbit around a star;
and is mostly round because its own gravitational pull has shaped it into,
more or less, a sphere. (Charles Liu 128)
We could only see the end result of planet formation, not the proc-
ess itself. And we had no other examples to study. Even with the knowl-
edge gained about other solar system, we were left to wonder, are there
other planetary systems out there, and did they form like ours? (Hubble
Site)
In order to study how where planets come from, we have to know
where stars come from as well. Because each planetary system begins
with a star. And stars come with supernovae explosion which creates a
cloud of dust and gas called nebula.
Once gravity takes over, the cloud begins to shrink, sucking in
more...

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