Lesson 2: Gravity and the solar system.

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Across
  1. 3. The path that a body follows as it travels around another body in space.
  2. 5. The first law states that the planets move in an elliptical.
  3. 7. The point where the object is closest to the sun.
  4. 8. The terrestrial and extra terrestrial planets are separated by the__________.
  5. 9. The center of our solar system. (A star)
  6. 10. The force that pulls objects closer to its core or center.
Down
  1. 1. The inward force that causes an object to move in a circular path is called ________.
  2. 2. The cloud from which the solar system formed 4.6 billion years ago.
  3. 4. The point where the object is farthest from the sun.
  4. 6. It is made up of one star and eight planets.