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Star Powerpoint


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A power point on the life and death of stars.

Published in: Technology

Star Powerpoint

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