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The solar system - Phoenix University Guide


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The solar system - Phoenix University Guide

  1. 1. PRESENTATION NAME Students
  2. 2. Formation of the Solar System Photo credit: Bothun G. via http://zebu.uoregon.ed u/ • The nebular theory is about how the solar system formed. • Made from 98% helium and hydrogen • 2% of other elements also helped create the solar system. • Earth and other terrestrial worlds were made from the other heavier elements. • The motion the planets orbit in was caused by gravity, heating, spinning, and flattening. • Began as a spherical cloud of cold and low- density gas.
  3. 3. Terrestrial Planets’ Geology & Atmosphere • Internal heat, primarily from radioactive decay can cause volcanic and tectonic activity. • Only large planets retain enough internal heat to stay geologically active today. Geology Atmosphere
  4. 4. Crust Mantle • Upper- Lithosphere • Lower- Asthenosphere Outer Core Inner Core
  5. 5. Earth’s Geology & Atmosphere Troposphere Stratosphere Mesosphere Ionosphere
  6. 6. Picture Credit: NASA 2013 (Taken March 1, 2013 by the Messenger Spacecraft) • Named after the Roman God of Commerce, Mercury • One of the most notable features of its geography is the Caloris Basin • Sun-scorched surface • Only slightly larger than the Earth’s Moon • Has very little atmosphere and is covered in craters • Temperatures can range from 800 degrees Fahrenheit to -290 degrees Fahrenheit • 2nd Most Dense Planet after Earth • Large Metallic Core
  7. 7. Photo Credit: NASA, 2013 Photo Credit: NASA, 2013 • 2nd Planet From the Sun • Closest Planet to Earth • Brightest Object in the Sky other the Sun and Moon • Surface covered with craters, volcanoes, mountains and large plains of lava • Atmosphere is mainly carbon dioxide • Clouds are sulfuric acid • One of the hottest planets in the Solar System • Rotates backwards
  8. 8. Photo Credit: George Dvorsky via 2012 • Cold Desert World • Half the Diameter of Earth • Has seasons, polar ice caps, volcanoes, canyons, and weather • Atmosphere too thin for water to exist in liquid form for any length of time • Signs indicate ancient floods • No magnetic field around the globe • Has two moons: Phobos and Deimos
  9. 9. • Near-Earth Objects (NEOs) are comets and asteroids that have been nudged by the gravitational attraction of nearby planets into orbits that allow them to enter the Earth's neighborhood. (NASA, 2013) Photo Credit: (NASA/JPL Public Domain) 2004
  10. 10. Large mass and size Far from the Sun Made of H, He, and hydrogen compounds  Rings and many moons Great Red Spot Picture retrieved from: Bennett, J. O., Donahue, M., Schneider, N. O., & Voit, M. (2010). The cosmic perspective (6th ed.). Boston, MA: Addison Wesley. Page 207
  11. 11. Image courtesy 10/15/
  12. 12. References • Bennett, J. O., Donahue, M., Schneider, N. O., & Voit, M. (2010) The Cosmic Perspective. (6th ed.) Boston, MA: Addison Wesley. • Bothun, G. (n.d.). Retrieved from • HubbleSite. (2010). Hubble Finds Star Eating a Planet. Retrieved from 2010/15/ • NASA. (2013). Colors of Mercury. Retrieved from • NASA. (2013). Mars. Retrieved from Object=Mars&Display=OverviewLong • NASA. (2013). Mercury. Retrieved from Object=Mercury&Display=OverviewLong • NASA. (2013). Near-earth object program. Retrieved from • NASA. (2013). The Planet Venus. Retrieved from F_The_Planet_Venus_5-8.html • NASA. (2013). Venus. Retrieved from Object=Venus&Display=OverviewLong