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Transcript
Name:__________________________________ Chapter 5 Mid-Term Study Guide Earth Science Part A 1–8. Number the steps to show the sequence of a star’s life. Write the correct number on the line before each step. ______ A small star becomes a white dwarf, and a large star becomes a neutron star or black hole. ______ The star collapses again and then explodes as a nova or supernova. ______ A cloud of dust and gas is drawn together by its own gravity. ______ The star continues to give off the same amount of energy for billions of years. ______ The star swells to a red giant or supergiant. ______ It collapses, causing increased fusion and energy. ______ The star uses up its hydrogen. ______ Material in the cloud, or nebula, begins to give off energy. Part B Match each term with its description. Write the letter of the correct answer on the line. ______ 9. supergiant ______10. universe ______11. constellation ______12. Polaris ______13. light-year ______14. Proxima Centauri ______15. nebula ______16. black hole ______17. magnitude ______18. supernova A brightness of a star B measure of distance C nearest star to sun D pattern of stars E largest type of star F cloud of dust and gas in space G exploding star H all of the galaxies together I North Star J region of great gravity and no light Part C Read each sentence. Write the letter of the correct answer on the line. 19. The hottest stars are what color? _____________________. 20. The layer of the sun’s atmosphere that gives off light is the _______________________. 22. What is a nebula? _______________________________________________________________. 23. What is a supernova? ______________________________________________________________. 24. What is a black hole? _______________________________________________________________. 25. What is a supergiant? ________________________________________________________________.