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Transcript
Life and Death of a Star Astronomy Name: Period: 1. There are ________________ stars in our galaxy. 2. What are the pillars of creation? 3. Each contracting cloud can produce a few dozen to __________________ of stars. 4. What is the temperature in the middle of a dust disc? __________________ 5. A star’s biggest opponent is ________________ that wants to crush the star. 6. What holds up the star from gravity? 7. How hot a star is relates to the ______________ it emits. _________ is hotter and ______________ is cooler. 8. What are red dwarfs? 9. __________ is the fundamental thing that drives the life history of stars. _______________ stars live their lives faster. 10. The size of a star influences how it ______________. 11. what will gravity do to the sun when fusion is over? 12. what is a white dwarf? 13. our sun will eventually turn into a ____________________. 14. How can a white dwarf have their “last hoorah”? 15. What is a Type 1A supernova? 16. What is the “robotic search engine” and how does it help? 17. A massive star builds up a core made of __________ and eventually it becomes unstable. 18. ____________________ are the source of all the heavy elements around us. 19. We are essentially made up of ___________ elements. 20. What is a neutron star? 21. one teaspoon of neutron star material is the mass of _________________________ tons. 22. A black hole represents the death of a _________________ star. 23. Why are black holes called “black holes”? 24. What happens when neutron stars collide? 25. What are the chances of our star colliding with another? _______________________ 26. What are blue stragglers? 27. What is a brown dwarf?