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the different shapes of the moon you see from Earth


one object in space casting its shadow on another object in space

solar eclipse

the blocking of light to earth that occurs when the moon is directly between the sun and earth


the darkest part of a shadow during an eclipse


the larger part of the shadow

lunar eclipse

the earth interrupts light shining on the moon


the repeated rise and fall of the level of the ocean

spring tide

When the tidal range is greatest. (full moon and new moon)

neap tide

a less than average tide occurring at the first and third quarters of the moon


a magnifier of images of distant objects


a dark region of considerable extent on the surface of the moon


a large round pit caused by the impact of a meteoroid


chunks of rocks or dust from space

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