Sun-Earth-Moon System

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Across
  1. 4. the sun is directly overhead at the equator and the days and nights are both 12 hours
  2. 5. light mountainous regions on the Moon
  3. 6. when the Earth moves between the Sun and Moon and the Moon falls in Earth's shadow
  4. 7. Earth's spinning movement on it's axis
  5. 12. form when space objects impact the surface of the moon
  6. 13. the darker shadow cast on the Earth or Moon while experiencing a total eclipse
  7. 14. higher than normal ocean waters when the sun and moon are aligned in the same direction
  8. 15. the shadow cast by the earth or moon over an area experiencing a partial eclipse
  9. 18. the point in an orbit where an object like a planet is closest to the sun
  10. 19. the point in an orbit where an object like a planet is farther from the sun
Down
  1. 1. Earth's movement on it's orbit around the sun
  2. 2. the point where the moon has the same time of revolution and rotation
  3. 3. the sun is overhead at it's farthest distance north or south of the equator
  4. 8. lower than noremal waters when the moon is at a right angle to the Earth
  5. 9. dark smooth plains on the Moon
  6. 10. when the Moon moves between the Earth and the Sun and blocks out the sun
  7. 11. decrease in the sunlit side of the Moon
  8. 16. increase in the sunlit side of the Moon
  9. 17. valleylike structures that might be collapsed lava tubes on the moon