semester astronomy topics

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Across
  1. 6. what is the outer layer of the sun?
  2. 7. what is the path that the Sun follows through the constellations each year as the Earth's seasons change?
  3. 9. what model suggests the sun is the center of the solar system?
Down
  1. 1. A grouping of stars that make up a shape
  2. 2. what did galileo discover about the sun?
  3. 3. a part of a constellation that isn't the constellation
  4. 4. What model suggests the earth is the center of the solar system?
  5. 5. what is the spot right above your head when referring to space called?
  6. 8. what does the moon affect with water?
  7. 10. what is the center of the sun?