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ED 105 Presentation

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The Solar System

The Solar System

Published in: Technology, Education

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Transcript

  • 1. The Solar System
  • 2. The Sun
    • Has a surface which is about 5500 o C (much cooler than the interior)
    • Has no solid materials
    • Is made entirely of gas
    Our Star
  • 3. Major Planets
  • 4. Mercury
    • Has sodium as the most abundant element
    • Is only 40% as large as Earth
    • Has a surface which is EXTREMELY hot (up to 425 o C)
    • Marioner 10- took the 1 st pictures of Mercury in 1974
    The Planet of Craters
  • 5. Venus
    • Rotates from east to west
    • Is about 500 o C day & night
    • Contains continents while each continent is about the size of Australia
    • Has an acidic atmosphere
    • Has Gravity-100 times stronger than Earth
    • Pioneer Venus- 1 st to make a map of Venus through radio waves to penetrate the clouds
    The Planet of Clouds
  • 6. Earth
    • Rocks and minerals –Solid materials that make up Earth
    • Pangea- “all the lands” (one continent)
    • Atmosphere- a mixture of gases
    • Oxygen an d Silicon- Two most common elements in Earth’s crust
  • 7. Mars
    • Fourth planet from the sun
    • Has a large volcano
    • Iron compounds –make Mars reddish in color
    • Average temperature –lower than Earth
    The Red Planet
  • 8. Jupiter
    • A near-star
    • Made of hydrogen and helium
    • No solid surface but has a solid core
    • Has two moons
    • The Great Red Spot- lasted for 300 yrs. & as big as 2 Earth’s diameter
    The Giant Planet
  • 9. Saturn
    • The second largest planet in the Solar System
    • Rings- chunks of ice-covered rocks
    • Gives off more energy than they receive due to its internal heat
    • Has large nine moons and many smaller ones
    The Ringed Planet
  • 10. Uranus
    • The first planet discovered in modern times
    • Four times larger than Earth
    • Has five moons
    • Atmosphere- Hydrogen & methane
    • Nine distinct rings & two faint rings
  • 11. Neptune
    • Is a large, gaseous planet
    • Has an atmosphere containing methane
    • Has rings that do not completely surround Neptune
    • Has two moons
  • 12. Pluto
    • Is the smallest & most distant planet from the sun
    • Is about the same size as Earth’s moon
    • Has the longest orbit
    • Takes about 250 years to travel around the sun
    • Has a longer orbit than Neptune but narrower so it crosses inside Neptune’s orbit for a period of 40 years Which makes Neptune the farthest planet from the Sun within those 40 yrs.
  • 13. Asteroids
    • Are small rocky objects
    • Means “star-like”
    • Asteroid belt- A million or so asteroids larger than a kilometer
  • 14. Comets
    • Consists of three basic parts: a nucleus, a coma, and a tail
    • Nucleus- Solid chunk of matter at the center of the comet
    • Coma- Cloud of vapor
    • Tail- Made of dust released from a comet’s outer layer of ice as the ice evaporates
  • 15. Meteors
    • Many pieces of rock (size of a sand grain to tens of meters across)
    • Burning rocks or shooting stars
  • 16. Conclusion
    • The Solar Sysytem contains the sun, nine planets, and other objects such as comets
    • All the planets revolve around the Sun in an orbit which is an ellipse
    • All the moons revolve around its respective planets
  • 17. References
    • The Raintree Illustrated Science Encyclopedia
    • www. Google.com