Rotation and Revolution

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Across
  1. 3. when one side of the Earth is facing the Sun.
  2. 5. movement of one object in an orbit around another, which causes the year.
  3. 7. caused by Earth's revoluton and tilt on its axis.
  4. 8. imaginary line through the center of an object that it spins on.
Down
  1. 1. path one object takes around another.
  2. 2. 365 days, the time it takes for one revolution around the Sun.
  3. 3. 24 hours, the time it takes for one rotation.
  4. 4. spinning of the Earth on its own axis, which causes day and night.
  5. 6. when one side of the Earth is opposite to the Sun.