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8th Grade Chapter 1 Lesson 6
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8th Grade Chapter 1 Lesson 6

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    8th Grade Chapter 1 Lesson 6 8th Grade Chapter 1 Lesson 6 Presentation Transcript

    • 8 th Grade- Chapter 1 Lesson 6 Pgs.39-49 For Student Use Only
    • The Planets
      • Planet- “wanderers” were named planets because the moved through the constellations
      • The planets are divided into Inner planets and Outer Planets
        • Inner planets- nearest Sun (Mercury, Venus, Earth, Mars)
        • Outer planets-farther from Sun (Jupiter, Saturn, Uranus, Neptune, Pluto)
    • The Planets
      • Mercury-
        • Rocky, barren, craters- similar to our moon
        • 2 nd smallest planet, fastest planet (30mi/second)
        • No atmosphere (extreme temps)
    • The Planets
      • Venus-
        • Starlike planet- called morning or evening star depending on when the star is visible)
        • Covered in highly reflective clouds made of sulfuric acid
        • Earth’s twin planet
        • Run-away Greenhouse effect- hottest planet
        • High pressure, and no water on surface
    • The Planets
      • Mars-
        • Red Planet- from iron rust in sand
        • 2 moons- Phobos and Deimos
        • Has a thin atmosphere
        • Rugged terrain
        • Physical Features:
          • Valles Marineris- big trench
          • Olympus Mons- volcano (3x as large as Mt. Everest)
    • The Planets
      • Jupiter
        • Largest planet in Solar System
        • Gas Giant- made of Hydrogen and Helium
        • Great Red Spot is an anticyclone
        • Strong magnetic field
        • Has many moons (28 have been discovered now)-
          • 4 most known moons: Ganymede (largest moon), Europa, Callisto, and Io (is home to the first active volcano ever discovered on another planet)
    • The Planets
      • Saturn
        • Has icy, dusty rings
        • Gas Giant- Hydrogen and Helium
        • Least Dense planet
        • Has many moons- (30 have been discovered now)-
          • Most known moons- Mimas (golf ball), Iapetus, Phoebe and Titan (best known moon)
    • The Planets
      • Uranus
        • Third largest planet
        • Possibly has liquid water that covers a solid core the size of Earth
        • Has many moons- (21 discovered now)- most known moons- Miranda
        • Has rings like Saturn
        • Rotates on its side
    • The Planets
      • Neptune
        • Methane makes Neptune blue
        • Strong winds
        • Great Dark Spot- (might be a cyclone)
        • Possibly mostly water like Uranus
        • Many moons- most known- Triton (atmosphere and magnetic field)
    • The Planets
      • Pluto
        • No longer the 9 th planet
        • Smallest planet (more like a moon)
        • Double planet- Charon (moon) and Pluto orbit each other and are about the same size
        • Pluto and Neptune cross orbits and Neptune becomes the farthest planet