Unit 4 Space

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Across
  1. 2. when a massive star runs out of fuel
  2. 3. our sun is a ______________ star
  3. 6. The Milky Way galaxy is a _________ galaxy.
Down
  1. 1. _____ stars are hotter than red stars
  2. 3. Brightness of a star is dependant on _______
  3. 4. A ________ is a giant ball of hot gas, mainly composed of hydrogen and helium.
  4. 5. a stars ________ is dependant on it temperature