Unit 1: Origins of the Universe - North High School Earth ...€¦ · Big Bang Theory Pulsing...
Transcript of Unit 1: Origins of the Universe - North High School Earth ...€¦ · Big Bang Theory Pulsing...
Unit 1: Origins of the Universe
Day 4: Hydrogen and Helium in the Atomosphere
Opener
Cosmic Microwave Background Radiation…
What do you know!?!
- How do we hear it?
- Where do we hear it?
- Where did CMBR come from?
Critical Content for Today
A7- Describe under what conditions hydrogen and helium
were created in the universe
A8- Assess conditions of the changing universe and the
amount of hydrogen and helium that were created
What do you know about Subatomic
particles??
With your group, come
up with a list of
ANYTHING you know
about subatomic
particles?
Person sitting at seat #1
will share one idea with
the full group
Bill is going to teach us about atoms!
https://youtu.be/aNK1mQfNeik
Do we need to change or add
anything to our list about
subatomic particles??
Things to remember about subatomic
particles
Subatomic particles are the small
things that make up atoms
(which make up elements)
Atoms are made of:
Protons
Neutrons
Electrons
What makes up different elements
Element
Name
Element
Mass
Proton Neutron Electron
Oxygen 16 8
Nitrogen 14 7
Working with your group in your roles
(1) Facilitator (2) Materials
Handler
(3) Checker (4)
You will be assigned to a lab station around the room. This
is your station for a while, so get ready to love it!!
Element game
How to play the game:
The elements must contain
the correct number of
protons, neutron and
electrons so use your “How
are elements made” sheet
to figure it out
Example of creating Oxygen
Oxygen
P
P
PP
P
P P
P
PNN
N
N
N
N
NN
N
E
E
EE
E
EE
E
MASTERS OF THE UNIVERSE!!!
Everything in the world had to come from somewhere,
so you are about to be the master of the universe and
will create the beginning of everything.
But don’t get cocky, you only get 3:00 minutes to
create the building blocks of EVERYTHING in our
universe!
Graphing EVERYTHING!!!
Count the number of Hydrogen atoms
created and the number of Helium atoms
created
Fill in the pie chart based on the number
of hydrogen and helium atoms you have
Example: if you have 12 hydrogen, color in 12
pie pieces
Now the real story of the universe!
All
matter
is in a
hot/
dense
heap
BOOM!
Large
explosion
caused
universe
to
expand
Everything
was super
hot and
particles
were
really
small!
Quarks
and
Photons
Universe
cooled
off and
P, N, and
E started
to form
P, N, and E
started
fusing
together
to make
the super
light
elements
(Hydrogen
and
Helium)
3:00 minutes
passed and the
universe
expanded enough
and cooled off
enough that all the
initial elements
stopped being
created!
Elemental Ratio
Because of these VERY IMPORTANT 3:00, the universe is made
up of 75% Hydrogen and 24% Helium (plus 1% random other
stuff)
This matters because it tells us that all of the
Hydrogen and Helium were created at the same
time off of one big explosionIf there were multiple explosions creating the universe, we might see
more Hydrogen in one place and more Helium in another. But we
don’t see that!!
Critical Content for Today
A7- Describe under what conditions hydrogen and helium were
created in the universe
What type of event happened to start the creation of H and He?
A8- Assess conditions of the changing universe and the amount of
hydrogen and helium that were created
What happened to start H and He forming?
What happened to stop the H and He forming?
Theories about the origin of the universe
Big Bang
Theory
Pulsing Universe
Theory
Steady State Universe
Theory
The universe began very
small and due to a rapid
release of energy, the
universe has expanded.
The universe expanded
like a balloon in all
directions and will
continue to expand
The universe began very
small and due to a rapid
release of energy, the
universe has expanded.
Eventually the universe
reaches its outer limits
and collapses back. This
happens in a constant
pattern
The universe has no
beginning or no end. It is
constantly expanded as
matter is added by small
little explosions across
the universe
How to determine which theory is
In the space below the
evidence, decide if the
information fits with your
knowledge of the universe
If the evidence fits, record
“Why does it fit?”
If the evidence doesn’t fit:
“Why doesn’t it fit?”