Solar System

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Across
  1. 2. Large pieces of rock with irregular shape floating between mars and jupiter
  2. 5. This field of rocks lies between mars and jupiter
  3. 11. In 2006 this planet was classified as a dwarf planet.
  4. 13. The first person to walk on the moon
  5. 17. This planet has at least 24 moons
  6. 19. The first migrant farmworker to become an astronaut
  7. 20. A huge group of stars
  8. 21. A day on this planet takes slightly more than an Earth year
Down
  1. 1. 70% of the surface is covered by water
  2. 3. A small rock that usually burns up when entering the Earth's atmosphere
  3. 4. This occurs when the moon passes between the sun and Earth
  4. 6. One million Earths can fit inside this celestial body
  5. 7. This planet completed only 1 orbit around the since its discovery
  6. 8. This planet has the strongest pull of gravity in the Solar System
  7. 9. This occurs when the Earth passes between the sun and moon
  8. 10. A small body made out of dust, rock, gas and ice
  9. 12. This planet has the largest volcano in the Solar System
  10. 14. This object causes the tides on Earth
  11. 15. A force that pulls all objects toward each other
  12. 16. The closest planet to the sun
  13. 18. This is the only planet in our Solar System to rotate on its side.