Earth and Solar System

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Across
  1. 2. A imaginary line.
  2. 3. When Earth turns around its axis.
  3. 4. When an object revels around a celestial body.
  4. 7. The falling and rising movement of the sea.
  5. 8. A curve path that goes around a celestial body.
  6. 10. An artificial object that orbits a celestial body.
  7. 13. Four natural times of the year.
Down
  1. 1. The force between to objects.
  2. 3. Period:The time it takes to make one full spin around an axis.
  3. 5. Two times during the year when there is equal amount of day and night.
  4. 6. Eclipse: When the Moon's orbit passes through the Earth's shadow.
  5. 9. Way Galaxy: Home to over 200 billion stars.
  6. 11. Two time during the year when one side of Earth is experiencing the longest day and the other side is experiencing the shortes.
  7. 12. Eclipse: When the Moon travels between the Earth and the Sun, blocking some or all of the Sun's light.