The big bang theory

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Sum up the big bang theory
The big bang theory states that the earth began 13,700 million years ago in an explosion of matter which formed everything in the universe as we know it today.
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What evidence is there to support this theory?
Red shift and microwave background information.
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What is the red shift?
When a light from a source moves towards the red end of the light spectrum.
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What does the red shift prove to us?
That the galaxies are continuing to expand and move away from us.
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The further away a galaxy is from us the......... the light is
redder
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What does this mean?
The galaxy is further away from us.
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The universe expanding supports what?
That the universe began with an explosion
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What is microwave background information?
heat left over from the original explosion.
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Other cards in this set

Card 2

Front

What evidence is there to support this theory?

Back

Red shift and microwave background information.

Card 3

Front

What is the red shift?

Back

Preview of the front of card 3

Card 4

Front

What does the red shift prove to us?

Back

Preview of the front of card 4

Card 5

Front

The further away a galaxy is from us the......... the light is

Back

Preview of the front of card 5
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