ESH Semester 2 Vocab Crossword Puzzle Take 2

1234567891011121314151617181920212223242526
Across
  1. 4. element that forms in the cores of massive stars causing fusion to stop
  2. 6. calculated as mass divided by volume
  3. 7. forms when a massive star dies; intense gravity that not even light can escape
  4. 9. force of attraction in the universe
  5. 12. model of the solar system that places the sun in the center
  6. 13. anything that has mass and takes up space
  7. 16. phase of the moon in which the entire lit side is facing Earth
  8. 17. super dense star that forms when a massive star dies
  9. 19. theory that explains the formation of the universe
  10. 21. relatively cool area on the surface of the sun
  11. 22. the Sun's visible layer
  12. 23. classification of stars in which most stars are found
  13. 24. a collection of billions of stars held together by gravity
  14. 25. created the three laws of planetary motion
  15. 26. ______ magnitude is how bright a star actually is
Down
  1. 1. measurement of distance based on the distance that light can travel in a year in the vacuum of space
  2. 2. where nuclear fusion occurs in the sun
  3. 3. the only EM wave that humans can see
  4. 5. ______ magnitude is the how bright a star appears from Earth
  5. 8. EM wave with the longest wavelength
  6. 10. theory that explains the formation of the solar system
  7. 11. model of the solar system that places Earth in the center
  8. 14. EM waves are these types of waves
  9. 15. a collection of stars that make a picture used to map the night sky
  10. 18. the change in wavelength based on the motion of an object relative to the position of the observer is called the ____ effect
  11. 20. EM wave with the highest energy