The Big Bang Theory [Easy Mode]

How old is the universe?

• 13.7 billion years old

• 13.7 million years old

• 13.7 trillion years old

• I don't know

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How did scientists figure out the age of the universe?

• Making observations and using math

• By guessing really well

• By using a time machine

• I don't know

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Who proposed the big bang theory?

• Georges Lemaitre

• Nicolas Copernicus

• Galileo Galilei

• Thomas Edison

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When was the 'Big Bang Theory' proposed?

• 1927

• 1410

• 2012

• I don't know

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True or False: The universe has never stopped expanding since the Big Bang.

• True

• False

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True or False: The universe is expanding faster than the speed of light!!!!

• True

• False

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Why do you think people didn't believe Georges Lemaitre's theory?

• They thought the universe was shrinking

• They didn't have enough evidence

• They didn't understand the math

• I don't know

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NGSS.HS-ESS1-2

Which 2 give evidence for the 'Big Bang Theory'?

• Cosmic background radiation

• stars are born and die

• Redshifted galaxies

• Andromeda + Milky Way collision

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What does 'redshift' tell us about distant galaxies?

• Distant galaxies are moving away from us in every direction

• Distant galaxies are getting closer to us every day

• There is no cosmic background radiation

• Distant galaxies don't exist

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NGSS.HS-ESS1-2

When was cosmic background radiation discovered?

• 1964

• 1921

• 1938

• I don't know

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