8.8D Origins of the Universe
Flashcard
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Science
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8th Grade
•
Hard
Standards-aligned
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1.
FLASHCARD QUESTION
Front
What is the Big Bang Theory?
Back
The Big Bang Theory is a scientific explanation for the origin of the universe, suggesting that it formed from a huge explosion that sent all existing matter flying outward from a single point.
Tags
NGSS.HS-ESS1-2
2.
FLASHCARD QUESTION
Front
What characteristic does the universe change in according to the Big Bang Theory?
Back
The universe changes from more dense to less dense over time.
Tags
NGSS.HS-ESS1-2
3.
FLASHCARD QUESTION
Front
What evidence supports the Big Bang Theory regarding the movement of stars?
Back
The observation that all stars we see from Earth are moving away from us, indicated by the redshift of their light.
Tags
NGSS.HS-ESS1-2
4.
FLASHCARD QUESTION
Front
What does the redshift of light from distant galaxies indicate?
Back
It indicates that galaxies are moving away from each other, supporting the expansion of the universe.
Tags
NGSS.HS-ESS1-2
5.
FLASHCARD QUESTION
Front
What were the original two elements in the universe according to the Big Bang Theory?
Back
Helium and Hydrogen.
Tags
NGSS.HS-ESS1-2
6.
FLASHCARD QUESTION
Front
Why do we see light from celestial objects as being from the past?
Back
Because light takes time to travel from those objects to Earth, meaning we observe them as they were when the light was emitted.
7.
FLASHCARD QUESTION
Front
What is the significance of galaxies moving away from each other?
Back
It supports the idea that the universe is expanding, a key concept in the Big Bang Theory.
Tags
NGSS.HS-ESS1-2
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