STARS IN THE UNIVERSE by Ava T

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Across
  1. 2. Large star that dies in a supernova explosion and has such a strong force that not even light can escape
  2. 3. Formed when a massive star runs out of fuel and its core collapses. Primarily composed of neutrons
  3. 5. Nursery for stars
  4. 8. The remaining hot and dense core of a star that has burned up all of its fuel
  5. 9. Massive star that no longer has hydrogen to burn in its core
  6. 10. "Failed star" that was unable to reach a high enough temperature to perform hydrogen fusion
  7. 11. An explosion when a massive star reaches the end of its life and collapse, radiating a large amount of energy
  8. 12. The process in which two hydrogen nuclei combine to form one helium nucleus
Down
  1. 1. Formed after a red giant has shed its outer layers and is dying
  2. 4. Young developing star that is too small to perform nuclear fusion
  3. 6. A star that gets bigger as the hydrogen core starts to burn.It turns red due to a temperature change
  4. 7. A star that has begun nuclear fusion, increasing in temperature. This is the stage a star will spend most of its life