The Earth-Moon System

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Across
  1. 3. Where there is the least change between daily high tide and low tides
  2. 5. Regular rise and fall of ocean waters
  3. 6. A region of shadow that is less dark than the umbra
  4. 8. When the change between daily high and low tides is the greatest
  5. 9. The darkest part of the moon's shadow
  6. 10. Low, flat plains formed by ancient lunar lava flows
Down
  1. 1. When the shadow of one body in space(planet or moon) falls on another
  2. 2. Round depressions in the surface caused by the impact of high-speed meteoroids
  3. 4. Different shapes of the moon visible from Earth
  4. 7. Chunks of rock that move through the solar system