SPACE MINI PROJECT

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Across
  1. 4. A star that is among the most massive and brightest of all stars
  2. 7. A dead star that no longer gives off light or heat
  3. 8. Same hours during day and night
  4. 9. The extremely dense remains of a dead star
  5. 11. A gravitational field so strong that not even light can escape
  6. 12. A huge cloud of dust and gas held together by gravity
  7. 13. Days the Sun is highest or lowest in the sky
  8. 17. The spinning of an object on its axis
  9. 19. A star that is larger and brighter than a main sequence star
  10. 20. Spring, Summer, Fall, Winter
Down
  1. 1. A star that has exhausted all of its nuclear fuel
  2. 2. A young star in the early stages of formation
  3. 3. A ring-shaped nebula formed by an expanding shell of gas around an aging star
  4. 5. An extremely bright explosion of a star
  5. 6. 90% of stars are in this stage of their life cycle
  6. 10. The process that allows a star to give off light and heat
  7. 14. the path that 1 object in space takes around another object in space
  8. 15. A sloping position
  9. 16. One complete orbit made by a planet
  10. 18. An imaginary line that goes around the planet