Life Cycle of Stars

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Across
  1. 2. Object in space that produces light and energy from nuclear fusion.
  2. 3. Hydrogen and Helium were produced by the big bang, the other_________form in stars.
  3. 5. During this high mass stage, heavier elements fuse making new elements.
  4. 8. Forms when the core of a super massive star collapses in on itself and produces gravity so strong that even light can not escape.
  5. 9. When a high mass star explodes.
  6. 11. Stars are theorized to form from.......
Down
  1. 1. Our sun will eventually burn up all of its helium and stop giving off light during this stage.
  2. 4. Average mass stars like our sun.
  3. 6. Composed mainly of neutrons, extremely dense end to a high mass star.
  4. 7. Nuclear reaction that powers stars.
  5. 10. When an average sized star uses up all its hydrogen and starts to expand.