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The Solar System

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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The Solar System

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  1. The Solar System

  2. 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

  3. 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

  4. Grouping Planets Planets divided into 2 groups • Inner: Mercury, Venus, Earth, & Mars • Outer: Jupiter, Saturn, Uranus, Neptune, Pluto * Separated by asteroid belt

  5. Bill Nye video clip

  6. 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

  7. 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

  8. 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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