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Across
  1. 6. Monday is a (...) of the week.
  2. 7. Summer, autumn, winter and spring are all (...)
  3. 8. What orbit is shaped like an oval?
  4. 9. What is the model where the earth is the orbital centre.
  5. 10. What is the eclipse called when the moon passes directly behind the earth.
  6. 11. When the sun passes over the equator this is known as the (...).
  7. 12. What motion is the backward motion of planets?
  8. 17. What is the path called that an object takes in space when it circles the planet?
  9. 19. The moon goes through many different (....) in a month.
  10. 20. What is the imagery line about which a body rotates on.
Down
  1. 1. The amount of matter in a object is its (....).
  2. 2. What is it called when the sun is between the moon and the earth?
  3. 3. Ocean and the moons have these
  4. 4. What is an object in orbit called?
  5. 5. What theory places the sun as the centre of the universe?
  6. 13. What is the complete orbit around a object called?
  7. 14. What is the force that pulls you down?
  8. 15. What is a satellite called that is man made?
  9. 16. 365 days in a (....)
  10. 18. There are 366 days in a (....) year