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Starlight, Life Cycle of Starbright… a Star Galaxies Big Bang Theory Vocabulary 5 pt 5 pt 5 pt 5 pt 5 pt 10 pt 10 pt 10 pt 10 pt 10 pt 15 pt 15 pt 15 pt 15 pt 15 pt 20 pt 20 pt 20 pt 20 pt 20 pt 25 pt 25 pt 25 pt 25 pt 25 1pt What does the color of a star depend on? 2 Temperature 3 What can a scientist learn about a star from its spectrum? 4 Composition and Temperature 5 What color are the hottest stars? 6 Blue 7 What objects are formed from the materials in the core of a supernova? 8 Blackholes 9 What is Nuclear Fusion? 10 Hydrogen and Hydrogen fusing into Helium 11 What is the beginning of a star called – or a “Baby Star”? 12 Protostar 13 Where is a star born? 14 Nebula 15 What stage in a star’s life cycle is the longest? (Have the most hydrogen and most energy?) 16 Main Sequence 17 What stage of a star does it star to lose its hydrogen and start to expand? 18 Red Giant 19 What stage does the star lose all of its hydrogen? 20 White Dwarf 21 What galaxy contains new stars and has a large bulge in the center? 22 Spiral 23 What galaxy has a spherical shape and contain old stars? 24 Elliptical 25 What galaxy contains the “leftovers” and may be distorted due to nearby galaxies? 26 Irregular 27 What are found in the spherical halos of spiral galaxies and near elliptical galaxies? 28 Globular Clusters 29 Where are open clusters found? 30 Along the spiral disk of galaxies 31 What shows the relationship between a star’s surface temperatue and its absolute magnitude? 32 H-R Diagram 33 What is the theory of how the universe was created? 34 Big Bang Theory 35 Which of the stages of a star is the hottest? 36 Main Sequence Blue Stars 37 What shape is the Milky Way Galaxy? 38 Spiral 39 What is a theory of how the universe formed? 40 Big Bang Theory 41 What classification do astronomers use for galaxies? 42 Shape 43 How long ago was the universe formed? 44 13.7 Billion Years 45 What is a star’s apparent shift in position called? 46 Parallax 47 How is the universe organized? 48 How is the universe organized according to? 49 A loosely arranged structure 50 In a loosely arranged structure 51