Space

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Across
  1. 5. If a star is medium sized to __________ sized, it will become a red giant after being a main sequence star
  2. 6. Our sun is a __________ sized star
  3. 8. The only star in our solar system
  4. 9. The sun is the _____________ star to earth
  5. 11. The next stage of a red giant star
  6. 14. A scientific word for brightness
  7. 16. If a star is a __________ sized star, it will become a red super giant after its main sequence stage
  8. 17. What stars are made of
  9. 18. The next stage of a red supergiant star
Down
  1. 1. This is an egg shaped galaxy with a dense population of stars
  2. 2. A cloud of dust and gas that is either the remains of an old star or about to form a new star
  3. 3. A sphere of gas that has not gone through nuclear fusion yet
  4. 4. The main sequence is where _______ stars are categorized
  5. 7. This is the galaxy that our solar system is in
  6. 10. The type of galaxy that is disk shaped and has arms
  7. 12. A star is classified by how hot and how __________ it is
  8. 13. The farther away a star is the ________ bright it appears
  9. 15. A type of galaxy has no defined shape