Earth`s Rotation

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Across
  1. 5. Each day when the sun is farthest north or south of the equator.
  2. 6. The study of the moon, stars, and other objects in a space.
Down
  1. 1. The imaginary line that passes through Earth`s center and the North and South poles.
  2. 2. A system of organizing time that defines the beginning, length,and divisions of a year.
  3. 3. The movement of one object around another.
  4. 4. The spinning of Earth on its axis.
  5. 7. Earth follows a path as it revolves around the sun.