Out Of This World

 
This project was a class assignment.  Each student was assigned a solar system topic and was to research it.  Each student would create slides using the research information they had found.  Then each student would present their topic to the class. This was an engaging way to review the solar system.



My topic was Pluto.  I named my slides Once I was a Planet.  Pluto was discovered in 1930.  It was once the ninth planet in the solar system and the farthest from the sun.  In 2006 scientist redefined the criteria that defines what a planet is.  Pluto did not meet all three criteria so Pluto lost its title as a planet in 2006 when it was demoted to a dwarf planet.  Pluto is smaller then the Earth's moon.  Pluto's atmosphere is mainly made up of nitrogen.  When Pluto is at the farthest point from the Sun in its rotation the atmosphere freezes and does not thaw until it moves closer to the Sun.