1. 200 300 400 500 100 200 300 400 500 100 200 300 400 500 100 200 300 400 500 100 200 300 400 500 100 Star Life Cycle HR Diagram GalaxiesTheories Models Of Universe

2. The length of a stars life depends on

3. The mass of the star

4. At the end of its life, a star like our sun, will most likely become a what?

5. A black dwarf

6. A star, like our sun, was formed from a …

7. Nebula

8. During nuclear fusion, a star converts _?_ to _?_.

9. Hydrogen to Helium

10. The typical life cycle of a star the size of our sun What are the stages of the life cycle?

11. Nebula – Protostar – main sequence – Red Giant –Nova – White Dwarf – Black Dwarf

12. What color are the hottest stars?

13. Blue

14. In what region is our sun found in?

15. Main Sequence

16. In the main sequence, as luminosity increases, temperature _?_.

17. Increases

18. Sirius B is considere d what type of star?

19. White Dwarf

20. What star has the lowest temperature and lowest luminosity?

21. Procyon B

22. How are galaxies classified?

23. By their shape

24. What type of galaxy is our galaxy, the Milky Way?

25. Spiral

26. Where is the Earth’s solar system located in the Milky Way galaxy?

27. 2/3 of the way out on one of its spiral arms.

28. All galaxies are held together by

29. Gravity

30. Which galaxy type has no spiral structure and can vary in shape from round to cigar shape?

31. Elliptical

32. The oscillating theory suggests what about the universe?

33. Big Bang to Big Crunch to Big Bang

34. How are galaxies moving?

35. Away from each other

36. Why does the Hubble telescope take clearer pictures than earthbound telescopes?

37. The Hubble has no atmosphere to hinder the clarity of the pictures

38. What theory suggests the following: -All matter concentrated into one point. -An explosion occurred and things started moving outward

39. Big Bang

40. List the 3 pieces of evidence the support the Big Bang Theory.

41. 1.The universe is expanding, galaxies are moving away from each other 2.Background radiation noise 3.The Universe is mostly He and H

42. The diagram represents which model of the universe?

43. Heliocentric

44. The diagram represents which model of the universe?

45. Geocentric Model

46. The model that states the Sun is the center, everything orbits in an elliptical path, and there are 8 planets.

47. The Current Model

48. The models that stated the Earth is the center with everything revolving around it in a circle.

49. Geocentric and Epicycle

50. The models that stated the sun is the center and everything revolves around it.

51. Heliocentric Elliptical Current