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A power point on the life and death of stars.

A power point on the life and death of stars.

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Star Powerpoint Presentation Transcript

  • 1. The Life of a Star
    http://en.wikipedia.org/wiki/File:The_life_of_Sun-like_stars.jpg
    Samantha Wingate
  • 2. What is a Star?
    A star is a huge sphere of very hot glowing gas.
    When stars are grouped together we call them constellations.
    The big dipper is constellation that we see often.
    http://en.wikipedia.org/wiki/File:Big_dipper_from_the_kalalau_lookout_at_the_kokee_state_park_in_hawaii.jpg
  • 3. The Sun
    The Sun is the only star in our solar system
    All eight planets, comets, and an asteroid belt, revolve around the Sun.
    The Sun is a yellow, medium sized star.
    http://en.wikipedia.org/wiki/File:Yohkohimage.gif
  • 4. Classifying Stars
    Stars are classified according to their temperature and brightness.
    Hot Stars are Blue or White
    Cooler Stars are Red or Orange
  • 5. Classifying Stars Cont…
    A young star is called a dwarf star
    They can be colored red, yellow, or white.
    Our Sun is a yellow dwarf
    Older Stars are called Supergiants
    They can be colored red or blue.
  • 6. The Timeline of a Star
    Our Sun is an average star. The chart below shows the lifecycle of our sun over billions of years.
    http://en.wikipedia.org/wiki/File:Solar_Life_Cycle.svg
  • 7. How Stars Are Born
    Star are formed from giant clouds of dust and gas.
    Then, from gravity, the cloud collapses into a rotating gaseous ball.
    Once the new star gets hot enough it will begin to create energy from a process called nuclear fission.
    This created energy allows the star to glow for billions of years.
  • 8. Where Stars are Born
    The
    Eagle
    Nebula
    http://en.wikipedia.org/wiki/File:Eagle_nebula_pillars.jpg
  • 9. The Death of Stars
    A Star dies when it runs out of gases to burn.
    The Star will first expand into a red, super giant.
    http://en.wikipedia.org/wiki/File:Betelgeuse_star_%28Hubble%29.jpg
  • 10. The Death of Stars Cont…
    Then the Star will collapse and explode.
    This takes billions of years.
    The size of the star determines how long it’s life is.
    The bigger the star the shorter the life.
  • 11. After a Star Explodes…
    The Crab
    Nebula
    http://en.wikipedia.org/wiki/File:Crab_Nebula.jpg
  • 12. References
    Picture References
    Text References
    http://en.wikipedia.org/wiki/File:The_life_of_Sun-like_stars.jpg
    http://en.wikipedia.org/wiki/File:Big_dipper_from_the_kalalau_lookout_at_the_kokee_state_park_in_hawaii.jpg
    http://en.wikipedia.org/wiki/File:Solar_Life_Cycle.svg
    http://en.wikipedia.org/wiki/File:Yohkohimage.gif
    http://en.wikipedia.org/wiki/File:Eagle_nebula_pillars.jpg
    http://en.wikipedia.org/wiki/File:Crab_Nebula.jpg
    http://en.wikipedia.org/wiki/File:Betelgeuse_star_%28Hubble%29.jpg
    "Ask an Astronomer for kids!." Ask an Astronomer for kids!. Web. 25 Feb 2010. . <http://coolcosmos.ipac.caltech.edu/cosmic_kids/AskKids/star.shtml>.
    "Star Types." Zoom Astronomy. 2010. Enchanted Learning, Web. 1 Mar 2010. <http://www.enchantedlearning.com/subjects/astronomy/stars/startypes.shtml>.