Life of Stars

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Across
  1. 4. a star that has not begun fusion
  2. 7. material clumping together to become larger
  3. 9. stars cannot fuse this element
  4. 11. when this happens in the core the star heats up
  5. 14. theory where a collision forms moon
  6. 15. a large cloud of gas and dust where stars are born
  7. 16. fuel source of red giants
Down
  1. 1. type of star after a small main sequence
  2. 2. energy radiating from a star per second
  3. 3. the area around a star where ice can condense
  4. 5. these types of planets exist closest to a star
  5. 6. the fuel source of a main sequence star
  6. 8. baby planets less than 1km in diameter
  7. 10. what a white dwarf is made of
  8. 12. a dense star where protons and electrons fuse
  9. 13. a disk around a star where moons may form