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The Solar System. Overview of Solar System. Solar system: a group of objects in space that move around a central star The SUN Planets: large objects that moves around a star travel in paths called orbits around the sun Counter-clockwise How many? 8 or 9?

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Presentation Transcript
overview of solar system
Overview of Solar System
  • Solar system: a group of objects in space that move around a central star
    • The SUN
  • Planets: large objects that moves around a star
    • travel in paths called orbits around the sun
      • Counter-clockwise
    • How many? 8 or 9?
    • Most have at least 1 moon (natural satellite)
    • Some have rings
          • Planetary Posse Video
overview of solar system1
Overview of Solar System
  • Asteroids and Comets also move around the sun
    • Asteroids- small and rocky, made of metal and carbon, found mostly between paths of Mars and Jupiter
    • Comets- made up of dust and ice
grouping planets
Grouping Planets

Planets divided into 2 groups

  • Inner: Mercury, Venus, Earth, & Mars
  • Outer: Jupiter, Saturn, Uranus, Neptune, Pluto

* Separated by asteroid belt

grouping planets1
Grouping Planets

Two other ways to group planets:

  • Composition-what the they’re made of

-Rocky planets:Mercury, Venus, Earth, Mars, Pluto

*heavy, move slowly, no rings, few moons

-Gas planets:Jupiter, Saturn, Uranus, Neptune

*light, move quickly, rings, lots of moons

  • Size

-Small:Mercury, Venus, Earth, Mars, Pluto

-Giant:Jupiter, Saturn, Uranus, Neptune

mnemonic device
Mnemonic Device
  • A sentence that helps us memorize a string of words
    • Examples?
  • Will help us remember the order of the planets from the sun out
    • My Very Earnest Mother Just Served Us Nine Pickles
      • Every 248 years, Neptune becomes the farthest planet for 20 years
homework
Homework
  • Create your own mnemonic device to help you remember the order of the planets from the sun out

*Mnemonic Device Device

  • Copy Science Cards
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