The Solar System

Edit Answers
1234567891011121314151617
Across
  1. 3. A force that pulls you towards the center of a plant?
  2. 7. Which scientists played a major role in overturning the ancient idea of an Earth-centered universe?
  3. 8. Approximately how old is the Universe?
  4. 12. What has the Similar character to mar's moon?
  5. 14. What plant other than earth has been visited by the largest number of robotic spacecraft?
  6. 15. How many moons does mars have?
  7. 16. What is it called that has a trillion or so comets threw out the orbit of sun that has great distances?
  8. 17. What is it called that has a region of the solar system beyond the orbit of neptune and contains many icy comets?
Down
  1. 1. What is the Rocky space object that varies in size?
  2. 2. What is the sun mainly made of?
  3. 4. What is earth's moon called?
  4. 5. The average distance from Earth to the Sun is called a/an _____________.
  5. 6. The Huge space which contains all of the matter and energy in existence?
  6. 9. Once considered a plant, but its now a dwarf plant?
  7. 10. Mar's has the biggest____in the solar system?
  8. 11. The Smallest Plant in our solar system?
  9. 13. The Third closest plant to the sun?