Can You Pass This Science Quiz for Grades 3-5?
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Can You Pass This Science Quiz for Grades 3-5?

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QUESTION 81-How is a light-year defined?

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Correct Incorrect The distance that light travels in one year---A light-year is a unit of measurement in astronomy that represents the distance that light can travel in one year through a vacuum. It is used to measure extremely large distances in space, considering the vast speed of light.

QUESTION 81-How is a light-year defined?

  • The distance that light travels in one year
  • A shorter than average year
  • The time it takes light to travel from the sun to Earth
  • A figurine in Toy Story
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