The Solar System

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Across
  1. 4. the outer planets are also called this
  2. 7. the largest planet in the solar system
  3. 14. our sun is this
  4. 15. a hole in the ground caused by a meteor hitting
  5. 16. outer layer of gas on a terrestrial planet
  6. 17. star at the center of our solar system
  7. 20. an instrument scientists use to observe planets
  8. 21. the galaxy we live in
  9. 22. planet named after the sea god
  10. 24. a rock that crashes into Earth's atmosphere
Down
  1. 1. kind of planet Earth and Mars are
  2. 2. something both Saturn and Uranus have
  3. 3. Earth's companion
  4. 5. planet famous for its rings
  5. 6. path planets take around the sun
  6. 8. known as the red planet
  7. 9. an icy rock that has a bright tail
  8. 10. rocks in a belt between Mars and Jupiter
  9. 11. planet closest to the sun
  10. 12. the force that holds planets in their orbits
  11. 13. planet between Saturn and Neptune
  12. 18. once a planet, now considered a dwarf planet
  13. 19. planet known as the evening star
  14. 23. a planet that contains life