Life Cycle of Stars

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Across
  1. 2. the coolest stars are this color
  2. 4. the process of hydrogen fusing together to make helium that gives us energy from the sun
  3. 6. the hottest stars are this color
  4. 7. a baby star or the first stage of a stars life
  5. 8. our star is about 10 _________ years old
  6. 9. the end of a very large stars life
Down
  1. 1. a large cloud of gas and dust in space
  2. 3. the HR diagram measures a stars luminosity and this
  3. 5. the brightest stars with the shortest lives