Astronomy crossword-Alli

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Across
  1. 2. what color star is less hot.
  2. 6. a rule the correctly describes a natural phenomenon.
  3. 7. A hypothesis.
  4. 8. light source move toward you appear?
  5. 9. colors have diffrent?
Down
  1. 1. who believed the universe in expanding
  2. 3. light moves away appears?
  3. 4. who discovered gravity
  4. 5. What color star is hotter.
  5. 8. light passing through a prism produced a rainbow.