Life Cycle of a Star (TEKS 8.9A)

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Across
  1. 5. Atoms change structure in their nucleus and release or absorb energy. Stars are powered by these reactions.
  2. 7. Everything that exists in space and time
  3. 9. A chart that shows star brightness vs. temperature.
  4. 10. The galaxy we live in
  5. 12. Large, reddish or orange, star that is 100x it's original size. Supply of hydrogen ran out and helium is being fused with carbon.
Down
  1. 1. A small, dense leftover core of a star that has exhausted its fuel and shed its outer layers.
  2. 2. A type of nuclear reaction where hydrogen and helium combine and release energy. They power the stars.
  3. 3. Completely cooled star, doesn't flow, and is considered dead
  4. 4. a star that is in the stable, longest phase of its life cycle, where it fuses hydrogen into helium in its core
  5. 6. Clouds of gas and dust where stars form
  6. 8. Outer layer expands, the star cools, collapses, and explodes
  7. 11. How bright a star is