Several Options for the Beginning of the Cosmos

Mr. Chapman Science 9

Origin of the Cosmos

Origins – From Big Bang to Modern Man

Several Options for the Beginning of the Cosmos

Option 1: ______

______.

Option 2: ______

______.

Option 3: ______

______.

Scientists know that the cosmos had a ______due to ______decay and galactic ______.

Therefore, only options ______and ______are viable.

The Big Bang / Nucleosynthesis

u  13.7 billion years agoàMass of universeà size of ______
Unimaginable release of ______(an expansion not a traditional explosion)à ______

u  Nobody knows how/why it happened, but it created ______and ______

u  Created the 4 main forces: ______

______.

u  ______, ______and ______created (building blocks for all atoms).

Cosmic Microwave Background (CMB)

u  Discovered by the ______

u  Originally discovered in the ______

u  Mapped out in 1990 at Berkley

u  Energy waves (photons) left over from the original Big Bang in the form of ______. Thought to prove the BBT (Big Bang Theory)

What’s the Matter?

u  Baryonic Matter (10% of universe): ______

______

u  Non-Baryonic or Dark Matter (90% of universe): ______

______

u  Neutrinos: ______

It’s All Elementary My Dear Watson!

u  Expanding universe = stuff slowly cools down

u  Nucleusà protons + neutrons

u  Early space: mostly ______and ______atoms

Formation of the Earth / Solar System

u  50-100 ______years pass

u  Gravityàclumpingàcoolingàformed all the masses in the ______

u  Stars begin to form (Our sun - ______years ago)

u  Planets (ie. Our solar system)

u  All still very very very ______!!

u  Too hot for ______to last

Expanding / Contracting Universe Theory – Which One?

u  ______Shift of Lightàgalaxies moving ______us ( ______universe)

u  Faster move toward usà more ______

u  ______Shift of Lightàgalaxies would be moving ______from us ( ______universe)

u  Faster move away from usàmore ______

u  Ambulance example (eeeee à umm)

Hubble Expansion

u  ______in our local group are moving ______from us

u  Thereforeà ______Shifting

u  Proves our universe is still ______.

Explain the Big Crunch and Cycling in your own words below…

______

______

______

______.