1. 1pt 1 pt 1 pt 1pt 1 pt 1 pt 1 pt 1pt 1pt 1 pt 1 pt 1 pt 1 pt 1 pt 1 pt
Energy
Life Cycle
Galaxies
Layers
Misc.
1pt
1 pt
1 pt
1pt
1 pt
1 pt
1 pt
1pt
1pt
1 pt
1 pt
1 pt
1 pt
1 pt
1 pt
1 pt
1 pt
1pt
1 pt
1pt
1pt
1 pt
1 pt
1 pt
1 pt

2. Nuclear fusion combines hydrogen atoms into ____.

3. 1 PT
Helium

4. The source of the sun’s energy is ____.

5. 2 PT
Nuclear Fusion

6. In average sized stars, elements are fused down to ____ on the periodic table.

7. 3 PT
Iron

8. Elements heavier than iron can only form when massive stars go ________.

9. 4 PT
Supernova

10. What element begins nuclear fusion in a protostar?
Eleanor M. Savko
1/17/2019

11. 5 PT
Hydrogen

12. Where are stars born?

13. 1 PT
Nebula

14. What are newly formed stars called?

15. 2 PT
Protostars

16. What are adult stars called?

17. 3 PT
Main sequence stars

18. What are middle aged stars called?

19. 4 PT
Red giants

20. What will our star eventually become when it dies?

21. 5 PT
Black dwarf

22. What is the name of our galaxy?

23. 1 PT
Milky Way

24. What is the name of the galaxies that have no definite shape?

25. 2 PT
Irregular

26. What are the galaxies called that are spherical or football shaped?

27. 3 PT
elliptical

28. What are the galaxies called that are shaped like pinwheels?

29. 4 PT
spiral

30. Who developed the tuning fork diagram of galaxy evolution?

31. 5 PT
Hubble

32. What layer of the sun produces the energy?

33. 1 PT
Core

34. What layer of the sun is the outermost one?

35. 2 PT
Corona

36. What layer of the sun produces the light we see?

37. 3 PT
photosphere

38. What layer of the sun produces the color that we see?

39. 4 PT
chromosphere

40. What are the dark areas on the surface of the sun called?

41. 5 PT
sunspots

42. Sunspots occur in cycles of how many years?

43. 1 PT 11

44. What two things does the HR diagram relate?

45. Temperature and luminosity
2 PT
Temperature and luminosity

46. On the HR diagram, do stars get brighter as you go up the scale or as you go down?

47. 3 PT
down

48. What are the objects whose gravity is so large that nothing can escape?

49. 4 PT
Black holes

50. When light gets pulled into a black hole, it gives off _________.

51. 5 PT
X-rays