The document discusses several theories about the origin of the universe: 1) The Big Bang Theory proposes that approximately 13.7 billion years ago, all the matter and energy of the observable universe was concentrated into a hot, dense point, which exploded rapidly, causing the universe to expand and cool. 2) The Steady State Theory argues that the universe has always existed in its current state and new matter is continuously created as the universe expands to keep its density constant. 3) The Oscillating Universe Theory suggests that the expansion of the universe will eventually stop and reverse, causing the universe to collapse back on itself before exploding outward again in another Big Bang. The document also outlines the Solar

1. CHAPTER 1
Origin of the Universe
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2. The study of materials and
processes that occur
beneath and upon Earth's
surface.
Geology
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3. The study of our Earth.
Earth Science
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4. The study of the universe,
planet's origin and members of
solar sytem.
Astronomy
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5. Study of composition and
movements of seawater, coastal
processes, seafloor, topography
and marine life.
Oceanography
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6. Study of atmosphere and
elements that produce
weather.
Meteorology
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7. Origin of the Universe
Cosmology - is the study of the universe,
including its properties, structure and evolution.
10-15 billion years ago - the universe began
when the primordial explosion called Big Bang
occured.
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8. all energy and matter of the universe were compressed into
hot and dense state
big bang
great quantities of helium and hydrogen created
3 millions later huge clouds began to condense
200 million years formation of galaxies
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9. Examples of Galaxies
• Milky Way
• Large Magellanic Cloud
• Andromeda
• Cigar Galaxy
• Tadpole Galaxy
• Sombrero Galaxy
• Pinwheel Galaxy
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10. Universe - derives from the Old French word univers, which
in turn derives from the Latin word universum
is all of space and time (spacetime) and its
contents, which includes planets, moons, minor
planets, stars, galaxies, the contents of intergalactic
space and all matter and energy.
sometime called cosmos
geocentric ---- Nicolaus Copernicus ---- heliocentric mode
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11. Theories on the Origin of the
Universe
Theories of the Origin of the Universe_low.mp4
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12. BIG BANG THEORY
All of the energy and matter of the universe were
compressed into hot and dense state. About 13.7
billion years our universe began as a cataclysmic
explosion, which continued to expand, cool and
evolve its current state. Temperature decreased
sufficiently to allow clumps of matter to collect. these
materials formed the first nebulae, which evolved
into the first stars and galaxies. Our sun and
planetary system formed 5 billion years later.
Stephen Hawking - The Big Bang_low.mp4
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13. CREATIONIST THEORY
This theory states that God, the
Supreme Being created the whole universe
out of nothing. The proof can be read in the
Holy Bible stipulating that God created the
heaven and the Earth including man.
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14. OSCILLATING UNIVERSE THEORY
• proposed by a Russian-born US cosmologist
GEORGE GAMOW
• he said that the expansion of the universe will
eventually come to a halt then it collapses up
to the time that the universe will return to its
original form and form another Big Bang will
occur. This process will happen as a cycle.
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15. STEADY STATE THEORY
This theory states that the universe
has always been the same since the
beginning and will remain in its present
state until eternity. It further claims that
the new galaxies appear as a result of
the drifting of other galaxies.
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16. Our Expanding Universe
The universe is still expanding in a
Doppler red shift in the light we
receive. It shows an icreasing
distance between us and other
galaxies in the universe. It also shows
that the universe is expanding slowly.
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17. SOLAR NEBULAR THEORY
• The Solar Nebular Theory supposes that
planets formed in the rotating disks of gas and
dust around the young stars.
• The Earth and other planets of the solar
system formed billions of years ago as the
Sun condensed from a cloud of interstellar
gas and dust.

18. SOLAR NEBULAR THEORY
How do planets were formed in the solar
system ?
• A rotating cloud of gas contracts and flattens
• To become a thin disk of gas and dust around
the forming sun at the center.
• Planets grow from gas and dust in the disk
and are left in orbit when the disk clears.

19. Evaluation
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20. QUESTIONS
• What are the Theories explaining the origin of the
universe?
• How does Big Bang Theory explains the origin of
the universe?
• How can you state that the universe is still
expanding?
• How do the solar system and including the planets
were formed?

21. IDENTIFICATION
1. The study of the entire universe,
2. The widely accepted theory about the origin of the
universe.
3. This theory states that the universe has always been the
same and will continue to be the same forever.
4. This theory suggests that the universe expanded from a
small ball and it is still expanding.
5. The other term for universe.
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22. Answer the following:
1. How can you prove that the universe is expanding?
2. If you are to formulate your own theory about the origin of
the universe, how would you explain it?
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23. ASSIGNMENT
Research on the other theories about
the origin of thuniverse. Summarize
their main assumptions.
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24. THANK YOU :)
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25. REFERENCES:
• www.google.com
• www.youtube.com
• Salandanan, Gloria G.,Faltado III, Ruben E., and Lopez,
Merle B., Earth and Life Sciences for Senior High School,
2016,Lorimar Publishing, Inc.,pp.4-8