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14 – 2 The Solar System Warm - Up

14 – 2 The Solar System Warm - Up. 1. List the planets in order; include the asteroid belt. 2. What did Copernicus do? 3. What did Kepler do? 4. What is the difference between rotation and revolution?. The Solar System. The Solar System. Solar System – made up of 9 planets (including Pluto)

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14 – 2 The Solar System Warm - Up

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  1. 14 – 2 The Solar SystemWarm - Up • 1. List the planets in order; include the asteroid belt. • 2. What did Copernicus do? • 3. What did Kepler do? • 4. What is the difference between rotation and revolution?

  2. The Solar System

  3. The Solar System • Solar System – made up of 9 planets(including Pluto) • Including numerous other objects that orbit the sun

  4. Measuring Space • Astronomical Units – AU’s • 150 million km’s • 93 million miles • Distance from Earth to Sun

  5. Outer Planets • Pluto? • Neptune • Uranus • Saturn • Jupiter • Gas Giants • Exception of Pluto • No solid surface • Rings of dust and ice • Exception Pluto • Moons

  6. Pluto • Small rocky frozen crust • Farthest from sun • Smallest • No rings • One moon – Charon (1/2 size of Pluto)

  7. See Ya Pluto! • Pluto is now considered to be a dwarf planet.

  8. Neptune • 8th planet from Sun • Ringed • Pluto occasionally crosses inside Neptune’s orbit • Atmosphere made of methane • Blue / Green Color

  9. Neptune • From 1979-1999 Neptune was further away then Pluto

  10. Uranus • 7th planet from Sun • Axis it tilted horizontally • Thin Rings

  11. Saturn • 6th planet from the sun • Rings made of ice and rock • Size of dust to meters

  12. Saturn • 2nd largest • Least dense – would float in water

  13. Jupiter • 5th planet from the sun • Largest planet • 28 moons • Some larger than Pluto • Io – more active volcanoes than anywhere in solar system

  14. Jupiter • The Great Red Spot - A giant swirling high pressure gas storm in Jupiter’s atmosphere • Much larger than Earth

  15. Asteroid Belt • Between Jupiter and Mars • Might have become planets if not for Jupiter's gravity

  16. Meteoroids, Meteors, Meteorites • Meteoroid: small pieces of rock moving through the solar system • Meteor: Small piece of rock as it passes through the Earths atmosphere • Meteorite: Rock that did not burn up and made it to Earth’s surface.

  17. Comets • Giant dirty snowballs • Made of dust and frozen gases • Ice • Orbit close to sun – Radiation vaporizes materials • Gas and dust forms a tail

  18. Inner Planets • Solid and rocky • Also called “Terrestrial Planets” • Planets closest to the Sun

  19. Mars • 4th planet from the sun • Probes sent to explore planet • Polar ice caps • Signs that once had liquid water

  20. Mars • Red Planet – looks red due to iron oxide on surface

  21. The Face on Mars

  22. The Face on Mars • Martian sculpture? • New images show eroded raised surface

  23. Earth • 3rd planet from sun • Water exists as a liquid, solid, and gas • Atmosphere keeps UV rays out • Only planet with life

  24. Venus • 2nd planet • Thick clouds trap heat • 878 F • Hotter than Mercury • Rains sulfuric acid

  25. Mercury • Closest to the sun • 2nd smallest • Lots of craters on surface

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