Solar System and Gravity

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Across
  1. 3. The elliptical path one object takes around another
  2. 5. limitations or problems an engineer needs to face
  3. 9. what shape is an orbit
  4. 12. this planet takes 165 years to revolve around the sun
  5. 14. what causes gravity?
  6. 17. which month is it now?
  7. 18. the job of a scientist is to answer __________
  8. 19. will your weight be higher or lower on the moon?
  9. 21. if the distance between two objects increases, its gravity will:
  10. 24. the job of an engineer is to solve __________
Down
  1. 1. if the mass of an object increases, its gravity will:
  2. 2. the hottest planet
  3. 4. whose gravity causes the planets to orbit
  4. 6. gravity is the force that pulls objects _______ each other
  5. 7. scientists need to make these when they are studying something too big, small or dangerous to study directly
  6. 8. how many weeks have we been in school
  7. 10. the most massive planet in the solar system
  8. 11. how much gravity pulling on an object
  9. 13. NOT a planet. too small
  10. 14. the amount of "stuff" an object is made of
  11. 15. the red planet
  12. 16. our school mascot
  13. 20. will your weight be higher or lower on Jupiter?
  14. 22. which season is it now?
  15. 23. the force that pulls objects with mass towards one another