Instructional Video

Cgp Grey: Grey Explains: Is Pluto a Planet?

Curated by ACT

Discusses the history of astronomy and how scientists grouped disparate bodies as planets, and why Pluto is no longer considered a planet. [4:45]

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Concepts
asteroids, pluto
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Additional Tags
asteroid belt, definition of planet, history of astronomy, what is a planet, cgp grey, kuiper belt
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Classroom Considerations
  • This video is hosted on YouTube