The Big Bang theory proposes that the universe began from an initial expansion approximately 13.8 billion years ago from a hot dense state. Albert Einstein's theory of relativity and Edwin Hubble's discovery that galaxies are moving away from each other provided evidence for this theory. According to the Big Bang, the early universe underwent rapid inflation and cooling, allowing the formation of protons, neutrons, and eventually atoms of hydrogen and helium as it expanded and evolved into the present cosmos.

1. THE BIG BANG
THEORY
Patricia C. Persia
11-Albert Einstein

2. The Big Bang theory
The idea that the Universe was suddenly born and is not infinite.

3. This idea was made when Albert Einstein gave us a better
understanding about gravity using the Theory of Relativity

4. And Edward Hubble discovered that the
galaxies are moving apart from one another.

5. But what really happened
in the Big Bang theory?
Was there really a large
explosion?

6. NO! There was
no explosion,
rather there was
an expansion!

7. Approximately 13.8 billion years ago there
was an expansion, and from that
expansion all things came to be.

8. So this is what
really
happened

9. 1ST
 The cosmos goes through a
superfast “inflation”
expanding from the size of
an atom to that of a
grapefruit in a tiny fraction of
a second.

10. 2ND
Post-inflation, the
Universe is a seething,
hot soup of electrons,
quarks and other
particles.

11. 3RD
A rapidly cooling
cosmos permits
quarks to clump into
protons and
neutrons.

12. 4TH
Still too hot to form into
atoms, charged electrons
and protons prevent light
from shining: the universe
is a superhot fog.

13. 5TH
Electrons combine with
protons and neutrons
to form atoms, mostly
hydrogen and helium.
Light can finally shine

14. 6TH
 Gravity makes hydrogen and
helium gas coalesce to form
the giant clouds that will
become galaxies; smaller
clumps of gas collapse to
form the first stars.

15. 7TH
 As galaxies cluster together
under gravity, the first stars
die and spew heavy
elements into space; those
will eventually turn into new
stars and planets.

16. The Universe has no
borders it still continues to
expand and expand from
all around it is just nothing.

18. But there are still many
questions on how the Big
Bang started. And maybe
we will never be able to
answer them. But one
thing is for sure.

19. It is that everything as we know it started
from it and we will just have to keep
exploring.

20. Remember, that we are part of
the Universe therefore we can
say that we maybe the
Universe’s way of experiencing
it. So let us keep exploring and
experiencing until there are no
more questions to ask.

21. THANK
YOU!!!