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Pluto & the Nature of Science

Every so often, I like to stick my head out the window, look up, and smile for a satellite picture.

Steven Write

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Pluto is no longer a planet.

On August 24, astronomers said that Pluto is no longer a planet according to a new definition of the word planet. The new definition states that a planet is a celestial body that:
 

•  is in orbit around the Sun

•  has enough gravity to give it a nearly round shape

•  has cleared the neighborhood around its orbit.

The decision establishes three main categories of objects in our solar system.

  • Planets: The eight worlds starting with Mercury and moving out to Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune.
  • Dwarf planets: Pluto and any other round object that "has not cleared the neighborhood around its orbit, and is not a satellite."
  • Small solar system bodies: All other objects orbiting the sun.

Watch these videos:

 

•  http://abcnews.go.com/Video/playerIndex?id=2352188

•  http://abcnews.go.com/Video/playerIndex?id=2360595

 

Write a paragraph explaining why removing Pluto from the list of planets is a good example of the Nature of Science.

 

Excellent
Quality

(90-100)

  • Demonstrates a strong connection between the new definition of planets and the nature of science
    • includes a discussion of scientific research
    • includes an in-depth discussion of the impact of new knowledge

Good
Quality

(80-89)

  • Demonstrates a strong connection between the new definition of planets and the nature of science
    • includes a discussion of scientific research and the impact of new knowledge
  • Few spelling or grammar errors

 

Fair
Quality

(70-79)

  • Demonstrates a weak connection between the new definition of planets and the nature of science
    • poor discussion of scientific research and the impact of new knowledge
  • Several spelling or grammar errors

 

Poor
Quality

(Below 70)

  • Demonstrates no connection between the new definition of planets and the nature of science
    • no discussion of scientific research and the impact of new knowledge
  • Several spelling or grammar errors