Planets of Our Solar System

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Across
  1. 2. objects the circle stars other than our sun
  2. 5. Earth's twin planet
  3. 6. the closet planet to the Sun
  4. 10. objects in our solar system beyond the orbit of Neptune
  5. 12. the center of Earth composed of iron and nickle
  6. 13. the planet you would weigh the most on
  7. 17. bodies that orbit around a sun
  8. 19. Mercury, Venus, Earth and Mars are classified as this
  9. 20. the first known dwarf planet
  10. 21. the only planet with liquid water on its surface
  11. 22. You would weight the least on this planet
Down
  1. 1. small bodies from which a planet originates
  2. 3. theory that the sun and planets condensed at about the same time out of a cloud of gas and dust
  3. 4. the inner planets are...
  4. 7. a region of the solar system beyond the orbit of Neptune containing dwarf planets and other small bodies
  5. 8. the process by which Earths surface was formed
  6. 9. small bodies that orbit a planet
  7. 11. planets with gasses that are frozen
  8. 14. planets the furthest away from the sun
  9. 15. the hottest thing in our solar system
  10. 16. consists of the sun, the planets, dwarf planets and all other bodies that revolve around the sun
  11. 18. the only planet who spins opposite of Earth