Term
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Definition
| ...Scientific Theory supported by significant evidence. |
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Term
| The fact that the night sky is dark is evidence of the Big Bang Theory because... |
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Definition
| ...the blackness is due to the void of ...light that should travel forever so it shows that space is not infinite in size or time. |
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Term
| The fact that we only see Quasars that are from a very long time ago is evidence of the Big Bang Theory because... |
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Definition
| ...it shows that our universe is different than it was a very long time ago. |
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Term
| The fact that we observe Red Shifting is evidence of the Big Bang Theory because... |
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Definition
| ...it shows that celestial objects are moving away from us - in other words, the universe is expanding. |
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Term
| The fact that we observe relic radiation in our telescopes such as microwaves is evidence of the Big Bang Theory because... |
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Definition
| ...some electrons became unbound from their nuclear hosts during a time when the universe was much hotter and denser. |
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Term
| The fact that we should have a universe composed heated and cooled in a brief time creating many very small elements is evidence of the Big Bang Theory because... |
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Definition
| ...of the existence of so many small elements such as hydrogen and helium. |
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Term
| If I was "sleuthing" in the universe, this means that... |
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Definition
| I am investigating the universe. |
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Term
| Because the universe is mostly darkness rather than ablaze with light means... |
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Definition
| ...the universe is not infinite in time or size. |
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Term
| What is happening to the size of the universe? |
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Definition
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Term
What are some pieces of evidence for the
Big Bang Theory? |
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Definition
| 1. darkness of night sky, 2. the universe is expanding/red-shifting, 3. quasars from distant time are observed, 4. there is relic microwave radiation, 5. there are many hydrogen and helium atoms |
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Term
| When atoms become very hot, what happens to their electrons? |
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Definition
| The electrons can move around and possible become part of other atoms. |
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Term
| To say that electrons become unhindered means that they... |
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Definition
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Term
| The fact that there are many INDEPENDENT pieces of evidence for the Big Bang Theory means ... |
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Definition
| ... that there are many SEPARATE pieces of evidence. |
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Term
| When Red-shift is observed, this means that... |
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Definition
| celestial objects are moving AWAY from us. |
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Term
| When Blue-shift is observed, this means that... |
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Definition
| celestial objects are moving TOWARD us. |
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Term
| The ____________________ ____________ is the name of the galaxy where our Earth is. |
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Definition
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Term
| What are the types of galaxies? |
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Definition
| spiral, elliptical, and irregular |
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Term
| What type of galaxy is the Milky Way? |
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Definition
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Term
| What law explains the stars and galaxies movement away from us and the increasing speed they move away as the distance increases? |
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Definition
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Term
| The Doppler effect in regard to sound causes ... |
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Definition
| ...the frequency to go higher and the sound to become louder as the object approaches |
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Term
| Which scientists were the first who observed radio and microwaves in space? |
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Definition
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Term
| What did Edwin Hubble notice about galaxies? |
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Definition
| The galaxies become dimmer and red-shifted as they move further away. |
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Term
| The Big Bang Theory explains ... |
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Definition
| ... that the beginning of our universe began with a hot dense mass that exploded and is continuing to spread out/get larger. |
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Term
| When galaxies Red-shift, it means ... |
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Definition
| they are moving further away - there is a stretching of space between those galaxies. |
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Term
| What can we say about the age of the light that we see in the universe? |
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Definition
| The light is from the past - it's age is older than our current time. |
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