Patterns of Earth and Sky

Question or Hint Answer or Word
  1. a scientist who studies stars, planets, and other objects in the universe astronomer
  2. an arrangement of stars as seen from Earth constellation
  3. a period of time that is 24 hours long and includes daytime and nightime day
  4. a description of how something works or why something happens explanation
  5. information that supports an answer to a question evidence
  6. an attempt to find out about something investigation
  7. the pull between Earth and other objects, which acts even without touching gravity

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