Twinkle Twinkle Little Star http www writedesignonline com

“Twinkle, Twinkle Little Star” http: //www. writedesignonline. com/ The Life Cycle of a Star: Nursery to Neverland Courtney Mutschler Geospace 355

Our Sun is a Star! www. sec. noaa. gov/primer. html

How I Wonder What You Are… • Space acts as a nursery full of the stuff needed to give birth to stars. . – Gas – Dust The Space Nursery provides both these materials in the clouds in the atmosphere of space!

Birth : Protostar Stars are born when gravity pulls in the gas and dust in my Solar Nursery and begins to Shine! Shine When the cool masses of dust and gas combine, a star has a temperature of 1, 800, 000 degrees F! http: //www. virginmedia. com/images/

Way Above the World So High… • The Life Span of a star depends on the type of star it is: – Giant blue Stars = 1 to 100 million years – Yellow Star (the Sun) = 10 billion years – Red dwarf Stars = 100 billion – 1 trillion years

Like a Diamond in the Sky… Giant Red Star During the stars “old age, ” the star swells into a giant red star as its hydrogen fuses into helium and burns other fuels. http: //upload. wikimedia. org/wikipedia/commons/7/7 f/Betelgeuse_star_(Hubble). jpg

RIP Little Twinkle… A star has 3 types of death’s it could face, depending on its size…

1. Small and Medium Stars White Dwarf: Nuclear energy gone contractions www. williamsclass. com/. . . /Stellar. Evolution. htm Black Dwarf: burned out white dwarf (lump of coal) library. thinkquest. org/. . . /blackdwarfs. html

2. Large Blue Star Supernova – a gigantic star explosion, blasting away the stars outer shell, seen by us as a planetary nebula, while the core forms a www. megcabot. com Neutron Star aka ‘Pulsar’ Star; a result of a gravitational collapse of a star after the outer shell has been blasted away. flickr. com

3. Massive Blue Stars Supernova – a gigantic star explosion, blasting away the stars outer shell, seen by us as a planetary nebula, while the core forms a Black Hole: where the gravitational pull is so powerful nothing can escape its one-way surface! http: //www. ifa. hawaii. edu/~barnes/ast 110_06/bhaq/Black_Hole_Milkyway. jpg

References: http: //library. thinkquest. org/J 0112787/index. ht ml http: //www. en. wikipedia. org/