Solar System Review

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Across
  1. 8. model of the solar system with the sun in the center
  2. 9. exploration technique that takes far away objects and makes them appear closer
  3. 12. widest point of an ellipse
  4. 13. planet with the shortest revolution
  5. 15. the __________ space station
  6. 16. planet with the longest rotation
  7. 20. the amount of atoms an object is made of
  8. 21. focus two represents
  9. 23. an eccentricity closer to ________ means the shape is more flat
  10. 24. rotations occur when an object spins around its ______
  11. 25. an eccentricity closer to _______ means the shape is more round
  12. 26. cloud of dust and gas
  13. 27. planet with the longest revolution
  14. 30. _____% of the dust pulls towards the center of the nebula
  15. 33. when dust collides it forms small rocky bodies called __________
  16. 34. model of the solar system with the earth in the center
  17. 35. there are 8 of these in our solar system
Down
  1. 1. pluto is classified as this
  2. 2. shape of an orbit
  3. 3. the dust and gas of the nebula begins to flatten and thin forming an...
  4. 4. when distance increases, gravity ________
  5. 5. robots sent to other planets to collect data
  6. 6. ratio of focal length and major axis
  7. 7. the moon is an example of this
  8. 10. Earth's rotation is equal to one _____
  9. 11. the force that draws objects towards the center
  10. 14. when mass increases, gravity _______
  11. 17. step before planets in the nebular theory
  12. 18. an object going around another object
  13. 19. the idea behind the formation of the solar system
  14. 22. gaseous outer giants
  15. 28. gravitational pull on mass
  16. 29. Earth's revolution is equal to one _____
  17. 31. rocky inner planets
  18. 32. planet with the shortest rotation