Nonfiction Student Choice (Black Holes)

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Across
  1. 2. The closest black hole to Earth.
  2. 4. The 3rd biggest black hole size.
  3. 6. The 2nd smallest size for a black hole.
  4. 7. The distance from the center of the black hole to the event horizon.
  5. 9. What happens when a massive star collapses.
  6. 14. An extremely fast ripple in space caused by gravity.
  7. 16. The point of no return.
  8. 17. A method that scientists use to determine where a black hole is by seeing the stars around it.
  9. 19. The point of infinite density.
  10. 20. The black hole at center of the Messier 87 galaxy.
Down
  1. 1. Massive black holes.
  2. 3. A flat rotating structure of gas
  3. 5. The black hole in the center of the Milky Way galaxy.
  4. 8. It's MASSIVE and the 2nd largest black hole size.
  5. 10. An astronomical object that has a very strong gravitational pull.
  6. 11. A phenomenon that happens when gravity bends light and magnifies it.
  7. 12. A force of nature that causes masses to attract each other.
  8. 13. The largest and the most MASSIVE black hole size.
  9. 15. The biggest black hole
  10. 18. The smallest size for a black hole.