Science crossword

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Across
  1. 3. new leaves grow on trees
  2. 4. our galaxy
  3. 6. long period of the same weather
  4. 8. imaginary line going through centre of the earth
  5. 9. largest planet
  6. 10. earths satellite
  7. 11. season in which animals hibernate
  8. 12. movement of earth causing day and night
  9. 13. hottest planet
  10. 15. most famous constellation
Down
  1. 1. red planet
  2. 2. earth travels round the sun on this path
  3. 3. millions of them at night
  4. 5. energy from the sun
  5. 7. closest star to earth
  6. 10. the wet season
  7. 14. schools are closed for vacation