Across
- 1. theory that the universe came into existence from a large explosion
- 3. color of star with the longest lifespan
- 6. the temperature measurement of stars
- 8. a glob like star cluster
- 12. the ________ the mass the shorter the lifespan of the star
- 14. the y axis of the H-R diagram
- 16. the shape of the milky way, ______ spiral
- 17. _____ law, expansion of galaxy from observed spectral analysis (red shift/blue shift)
- 19. elements have the same number of what?
- 23. The number of protons in iron
- 26. technique used by scientists to measure the distance of stars
- 27. the smallest unit of matter
- 28. evidence of the big bang theory (cosmic ____________ background radiation_
- 31. an oval shaped galaxy
- 33. star phase in which helium is fused to carbon
- 35. the distance light travels in a year
- 37. a cluster of stars that are spread out
Down
- 1. formed from a larger core of a high mass star
- 2. star phase in which helium is fused up to iron
- 4. the color of high mass stars
- 5. a subatomic particle with a neutral charge
- 7. where stars are born
- 9. brightness from Earth
- 10. fusion requires high heat and _______
- 11. baby star
- 13. an object moving away from us will show a _______ ______
- 15. star phase in which hydrogen is fused into helium
- 18. a single letter given to a star, ________ class
- 20. a violent explosion
- 21. the bright center of a galaxy
- 22. an object moving towards us will show a _______ ______
- 24. star phase where no fusion occurs, the star is only a core
- 25. one of the colors of a main sequence star
- 29. the ______ table of elements
- 30. the number of protons is equal to the atomic _________
- 32. the process which stars make energy, _______ fusion
- 34. type of star that is formed from a smaller core of a high mass star
- 36. when you fuse two hydrogen together you get...