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The Big Bang Theory (Rialto Unified School District) PowerPoint Presentation

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Slide 1 - The Big Bang Theory
Slide 2 - Time begins The universe begins ~13.7 Billion years ago The universe begins as the size of a single atom The universe began as a violent expansion All matter and space were created from a single point of pure energy in an instant
Slide 3 - ~ 3 minutes after big bang The universe has grown from the size of an atom to larger than the size a grapefruit E=mc2 energy froze into matter according to Albert Einstein’s equation. This basically says that like snowflakes freezing, energy forms matter into clumps that today we call protons, neutrons and electrons. These parts later form into atoms
Slide 4 - ~ Several hundred thousand years after Big Bang ATOMS form (specifically Hydrogen and its isotopes with a small amount of Helium.) The early Universe was about 75% Hydrogen and 25% Helium. It is still almost the same today.
Slide 5 - ~200 to 400 million years after Big Bang 1st stars and galaxies form
Slide 6 - ~ 4.6 billion years ago Our Solar system forms
Slide 7 - Misconceptions about the Big Bang there was no explosion; there was (and continues to be) an expansion Rather than imagining a balloon popping and releasing its contents, imagine a balloon expanding: an infinitesimally small balloon expanding to the size of our current universe we tend to image the singularity as a little fireball appearing somewhere in space space began inside of the singularity. Prior to the singularity, nothing existed, not space, time, matter, or energy - nothing.
Slide 8 - Big Bang Timeline – Include, label and color What happened When each event (thing) happened Big Bang – energy Matter E=mc2 protons Neutrons electrons Atoms Hydrogen helium Stars and galaxies Our solar system Sun and all planets Earth (present day)
Slide 9 - Big Bang evidence Universal expansion and Hubble’s Law 3 degree background radiation Quasars Radioactive decay Stellar formation and evolution Speed of light and stellar distances
Slide 10 - 1. Universal expansion and Hubble’s Law Hubble observed the majority of galaxies are moving away from us and each other The farther, the faster they move Red Shift
Slide 11 - 2. Back ground radiation Noise radiation (static) is evenly spread across space The amount of radiation matched predictions C.O.B.E satellite confirmed for the entire universe that noise radiation (static) is evenly spread Law of conservation of energy (energy can neither be created or destroyed) – energy remains constant over time
Slide 12 - 3. Quasars - super large (solar system size) galactic cores that put out more light than whole galaxies Only found 10-15 billion light years away Found nowhere else Nothing exists past them
Slide 13 - 4. Radioactive decay Radiometric dating – gives us the age of items from the decay of radioactive materials found within the object Moon rocks have been dated and found to be older than Earth Gives us an estimated time that Earth and the Moon formed
Slide 14 - 5. Stellar formation and evolution We observe the life cycles of stars across the universe using tools such as satellites and telescopes we view stars form, burn and explode
Slide 15 - 6. Speed of light and stellar distances The speed of light is a universal constant of 300,000 km/s2 We observe stars millions/billions of light-years away A light-year is the distance that light travels in 1 year – the light we see today from a star 500 light years away is 500 years old The furthest stars away are 10-15 billion light years away We have telescopes that can see further, but there isn’t anything viewable
Slide 16 - LASTLY – we are pretty sure everything has a beginning, right?
 

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