The Solar System - PowerPoint

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					     The Solar System


Section 23.1
Pg. 640-644
                           The Solar System
• Solar system is
  composed of the sun,
  the planets, and other
  bodies that travel
  around the sun.
Formation of the Solar System
             • Formed from a cloud
               of gas, ice and dust
               called a nebula about
               4.6 billion years ago.
             • Star nearby might
               have exploded causing
               the nebula to flatten
               and spin faster.
     Formation of the Solar System
                            (Continued)

• Temperature in the
  center of nebula is
  increasing, and this is
  the beginning of the
  sun.
• Remaining gas and
  dust particles collided
  and stuck together to
  make the planets.
Formation of the Solar System
                     (Continued)

             • Two types of planets
               where formed.
                – Inner planets: small,
                  rocky planets with iron
                  cores
                – Outer planets: large
                  gas planets

				
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posted:5/20/2012
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