Unit 15 Review 1

123456789101112131415161718
Across
  1. 3. Explosion from a star
  2. 6. The 'Surface' of the Sun that looks solid but is actually gas
  3. 10. This zone moves energy when warm gas rises while cooler gas sinks
  4. 12. The orange-red layer above the surface
  5. 13. A ball of gas held by gravity with fusion as source of energy
  6. 14. The outermost and hottest layer of a star
  7. 17. The outcome of stars that are 10x-20x the size of our Sun (combine two words
Down
  1. 1. What scientists believe 90% of stars in universe are (combine two words)
  2. 2. This zone (also known as radiative) is where light energy passes between atoms
  3. 4. This color star has highest mass/temp/luminosity
  4. 5. The outcome of the heaviest stars over 20x our Sun's Mass (combine two words)
  5. 6. This kind of nebula forms around a white dwarf where new stars can form
  6. 7. The early stages when gas and dust get gravity
  7. 8. The exposed core of a star that is up to 10x the mass of our sun (combine two words)
  8. 9. Innermost layer of star where fusion occurs
  9. 11. This shockwave from a supernova sends out heavy elements into space (2nd half of phrase)
  10. 15. This color star has lowest mass/temp/luminosity
  11. 16. Merging of smaller atoms into heavier ones releasing energy
  12. 18. Collection of gas and dust where stars are created