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THE LIFE CYCLE OF A STAR

THE LIFE CYCLE OF A STAR. By: Ben Werner. NEBULAE . Nebulae are clouds of gas and dust that are the beginning of all stars. Nebulae are mainly made of hydrogen. W hen the cloud gets big enough its own gravity draws all the hydrogen together to fuse into helium and then. STARS.

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THE LIFE CYCLE OF A STAR

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  1. THE LIFE CYCLE OF A STAR By: Ben Werner Image from: http://www.nasa.gov/mission_pages/sunearth/news/News041612-M1.7flare.html accessed on 3/23/14

  2. NEBULAE • Nebulae are clouds of gas and dust that are the beginning of all stars. • Nebulae are mainly made of hydrogen. • When the cloud gets big enough its own gravity draws all the hydrogen together to fuse into helium and then... Image from: http://engineeringfukrey.blogspot.com/2013/09/nebula-and-star-clusters.html accessed on 3/23/14

  3. STARS • Stars are big balls of burning gas (hydrogen and helium). • Our sun is a star. • Stars end up in one of four forms... Image from: http://www.space.com/58-the-sun-formation-facts-and-characteristics.html Accessed on 3/24/14

  4. WHITE DWARVES • You might be thinking: Dopey, Grumpy, Sneezy, Bashful, Happy, Sleepy and Doc, but White Dwarves are very different! • A star will likely end up as a White Dwarf if the star is 1 to 9 times the size of our sun. • White Dwarves are very dense; and despite being only slightly bigger than the Earth, they have the same mass as our sun. White Dwarves weigh 4.93 tons per teaspoon! • White Dwarves are thought to eventually burn up and become Black Dwarvesbut calculations show that a BlackDwarf would have to be older than the current Universe! Image from: http://science.nationalgeographic.com/science/space/universe/white-dwarfs-article/ Accessed on 3/23/14

  5. NEUTRON STARS • Neutron Stars are even more dense than White Dwarf stars weighing in at 10 tons per teaspoon! • Neutron stars are solid. • If a star is big enough, carbon turns into neon and oxygen. The oxygen turn into silicon and sulfur and so on. When the star produces iron, it gradually becomes a Neutron Star. Image from: http://www.space.com/8970-massive-mega-star-challenges-black-hole-theories.html Accessed on: 3/23/14

  6. SUPERNOVAS • Supernovas happen when a HUGE star makes a HUGE explosion. • A star with 8+ times the mass of our sun has the potential to become a supernova. • One star at its peak (during a supernova) is brighter than all of the 100,000,000,000 other stars in its host galaxy! Image from: http://en.wikipedia.org/wiki/Supernova, Accessed on 3/23/14

  7. BLACK HOLES • Black Holes form after a supernova happens or if the star is big enough, it will collapse straight into a Black Hole. • A Black Hole’s gravity is so strong that even light passing by cannot escape it. This is why a Black Hole appears to be black. • A star would have to be 40+ times more massive than our sun to collapse straight into a Black Hole. Image from: http://jila.colorado.edu/~ajsh/insidebh/rn.html accessed on 3/23/14

  8. References • www.DiscoveryEd.org • www.Wikipedia.org • www.Yahoo.com • www.Google.com • DeCristofano, Carolyn Cinami., and Michael W. Carroll. A Black Hole Is Not a Hole. Watertown, MA: Charlesbridge, 2012. Print. • Mom

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