Earth Vocabulary Crossword

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Across
  1. 3. the outside of something
  2. 6. the sun and the planets that move around it
  3. 7. how hot or cold something is
Down
  1. 1. the world
  2. 2. the study of stars and planets
  3. 3. provide what is needed for something
  4. 4. how much of something there is
  5. 5. heat