Star Review

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Across
  1. 3. x-axis of the HR diagram
  2. 8. model of the solar system with the Earth at the center
  3. 9. force that pulls objects towards the center
  4. 10. blue colored stars have the _______ lifespan
  5. 12. the amount of "stuff" something is made of
  6. 16. cloud of gas and dust
  7. 17. partial or complete obscuring of light
  8. 18. spinning around a central axis (HINT: Earth's is 24 hrs)
  9. 24. smaller cores of a high mass star become this at the end of their lives
  10. 25. subatomic particle with a positive charge
  11. 26. stars spend the most amount of time in this stage
  12. 27. larger cores of a high mass star become this at the end of their lives
  13. 29. dark, flat parts of the moon
  14. 30. a shift in spectra that tells us an object is moving towards
  15. 31. shape of an orbit
  16. 32. a shift in spectra that tells us an object is moving away
  17. 34. gravity pulling on the "stuff" something is made of
  18. 36. when the moon is blocking the light from the sun to the Earth
  19. 38. end phase of a low/med mass stars life
  20. 39. number that describes the shape on an ellipse
  21. 40. the baby phase of a star
  22. 41. process by which stars make light, heat, and energy
Down
  1. 1. measurement of temperature used for stars
  2. 2. color of star that is the coolest
  3. 4. phase of a stars life that fuses He up to C
  4. 5. an atom with 6 protons is which element?
  5. 6. distance light travels in a year
  6. 7. if you fuse two hydrogen atoms together, what element is made?
  7. 11. theory for the formation of the universe that started with a bang
  8. 13. __________ brightness, how stars appear from Earth
  9. 14. elements have the same number of ___________
  10. 15. phase of a stars life that fuses He up to Fe, red ___________
  11. 19. __________ brightness, how bright stars actually are
  12. 20. when the moon is in the Earth's shadow
  13. 21. red colored stars have the _______ lifespan
  14. 22. smaller object orbiting a larger object
  15. 23. big explosion that occurs when a high mass star becomes unstable
  16. 24. theory for the formation of our solar system
  17. 28. color of star that is the hottest
  18. 32. a smaller object moving around a larger object
  19. 33. ball of gas held together by its own gravitational force
  20. 35. light, elevated parts of the moon
  21. 37. model of the solar system with the sun at the center