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8th Grade Ch. 3 Sec. 3 Inner Planets
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8th Grade Ch. 3 Sec. 3 Inner Planets

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  • 1. Ch. 3 Sec. 3 Inner Planets
  • 2. inner planets Mercury Venus Earth Mars terrestrial planets
    • close
    • together
    • no or
    • few moons
    small, rocky surfaces
  • 3. Mercury, messenger of the Roman gods closest planet to Sun no moons Mariner 10 space probe photographed it
    • similar to our moon-
    • size
    • flat plains
    • craters
    almost no atmosphere temp. ranges from 450 0 C  -170 0 C (day) (night)
  • 4.
    • Closest planet to Sun
    • Smallest terrestrial
    • planet
    • No moons
    • Explored by Mariner 10
    • Similar to Earth’s moon-
    • size & craters
    • Almost no atmosphere
    • Planet of extremes- temp. -170 o - 450 o C
    Front of card Picture & name of planet Back of card 7 stats (# of moons, names of moons, atmosphere, etc.)
  • 5. Venus, goddess of love & beauty, springtime & flowers “ morning star” & “evening star” Earth’s twin- similar in size retrograde rotation = rotates backwards (east  west)
    • thick atmosphere-
    • sulfuric acid clouds
    • greenhouse effect- atmosphere traps heat
    no moons
  • 6. Whenever you see a bright object in the west after sunset, it is probably Venus.
  • 7. The morning sky looking east
  • 8. Venus Jupiter
  • 9. Gaea, Earth goddess (ancient Greeks thought of her as Terra Mater ) Earth Mother Earth & moon 70% covered with water only planet with oceans
    • 3 main layers-
    • crust
    • mantle
    • core
  • 10. Mars, Roman god of war “ red planet” atmosphere mostly CO 2 polar ice caps covered by layer of frozen CO 2 tilted axis causes seasons
    • 2 moons-
    • Phobos
    • Deimos
  • 11. Mars is so cold that carbon dioxide (dry ice) freezes on the winter pole and Venus is so hot that tin and lead would melt on its surface.
  • 12. Mars and Earth size comparison
  • 13.
    • polar ice cap
    Mars
  • 14.  
  • 15. Is there life on Mars ?
  • 16. Mars’s moons
    • very small
    • Phobos - larger moon
      • 27 km in diameter
    • Deimos - smaller
      • 15 km in diameter
    • both covered with craters
  • 17. Spacecraft to Mars
    • Mars
  • 18.  
  • 19. Pathfinder preparations
  • 20. Journey of the Pathfinder
  • 21. Pathfinder airbags
  • 22. 360 Degree Panorama Mars Pathfinder Landing Site
  • 23. Rover Sojourner The rover "Sojourner" is a six-wheeled vehicle which is controlled by an Earth-based operator, who uses images obtained by both the rover and lander systems. Note that the time delay is about 10 minutes, requiring some autonomous control by the rover.

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