• Use the resource below to answer the questions that follow.
  • Red stars are the coolest and blue are the hottest.
  • Red dwarfs are less massive and much smaller in size than the Sun.
  • Red giants are what some main sequence stars (like our Sun) become near the end of their lives.
  • Supergiants are very massive stars and are larger than our Sun, but have a smaller radius than red giants.
  • Stars in the main sequence fuse hydrogen into helium in the core.
  • The nebula will be discussed in the concept "Star Formation"
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