Star Formation

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Across
  1. 2. Occurs when four hydrogen atoms collide forming one helium atom
  2. 4. The process of an unstable atom losing energy
  3. 8. The two main types of stars are high and low ___ stars
  4. 10. 4H-> He + _____
  5. 13. Stars are created when ____ pulls a cloud of hydrogen gas together
Down
  1. 1. Gas clouds grow denser as gravity pulls the ___ inward
  2. 3. In a low mass star the ___ is channeled into the center of the star
  3. 5. When the temperature inside of a gas cloud increases the ___ does too
  4. 6. The ___ of stars is measured in Kelvins
  5. 7. The ___ Helium fuels the star
  6. 9. Helium ___s powers the star
  7. 11. Stars are made up of ___ and dust
  8. 12. The opposite of Fusion