Lesson 1 & 2 Review

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Across
  1. 4. Movement of one object in its orbit around another object in space.
  2. 5. Force of attraction between two objects
  3. 7. Amount of matter that an object contains
  4. 10. September 23 This season starts
  5. 12. The Earth pulls the ____into orbit.
  6. 13. Earths revolution causes _________
  7. 14. Curved path that an object follows as it revolves around another object.
  8. 15. One factor that affects the force of gravity (not mass)
Down
  1. 1. Another name for an oval shape
  2. 2. - December 21 this season starts
  3. 3. We live in the _______ Hemisphere.
  4. 6. The spinning of the earth
  5. 8. The ______ pulls the Earth into orbit.
  6. 9. This book is used to keep track of weather, sunsets, sunrises, moon phases and other facts.
  7. 11. The Earth is tilted 23.5 degrees on its ______.
  8. 13. - March 21 This season starts
  9. 15. The earth's rotation takes (24 hours)
  10. 16. June 21 This season starts