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The Solar System

The solar system consists of a variety of celestial objects that orbit around the Sun, our central star. It includes eight or nine planets, each with their unique characteristics such as moons and rings. The planets are categorized into two groups: inner rocky planets (Mercury, Venus, Earth, Mars) and outer gas giants (Jupiter, Saturn, Uranus, Neptune, and dwarf planet Pluto). Additionally, the solar system hosts asteroids and comets that also travel around the Sun. This overview will enhance your understanding of these fascinating cosmic formations.

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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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