Crossword of The Solar System

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Across
  1. 6. a piece of solid rocky and metallic debris
  2. 8. includes solar eclipes and lunar eclipse
  3. 12. he made sun-centered model
  4. 15. where we live
  5. 16. he made a telescope
  6. 17. sea-level change
  7. 18. fastest moving planet
  8. 19. yellow star
  9. 20. Law of Universal Gravitation
Down
  1. 1. he studied motion of plants
  2. 2. be described as dirty snowball
  3. 3. he described a geocentric model
  4. 4. hottest planet
  5. 5. Earth's natural satellite
  6. 7. smooth and dark patches
  7. 9. loop like structures at the surface of sun
  8. 10. natural debris in The Solar System
  9. 11. dark and cooler regions on the sun
  10. 13. largest planet
  11. 14. the lighter-colocured regions of the Moon