Stars

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Across
  1. 2. Our star will eventually become a white _____.
  2. 4. Nuclear _____ is what causes stars to emit heat and light.
  3. 6. Stars vary from each other in color, size, brightness and __________.
  4. 10. Our sun is in the part of its lifespan called the main ___________.
  5. 11. A ___ is a large celestial body that emits heat and light.
Down
  1. 1. A "baby" star that hasn't get started nuclear fusion is called a _______.
  2. 3. The force that causes stars to form is called ______.
  3. 5. Hydrogen and ______ make up most of the elements in stars.
  4. 7. The main sequence is the ______ part of a star's life cycle.
  5. 8. A _____ nursery is where stars are formed.
  6. 9. Our star will become a _____ giant and expand, destroying the inner planets.