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2
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the darkest part of the shadow
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4
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the partial or total blocking of one object by another
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5
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the rise or fall of the level of water in the ocean
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7
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the day of the year that marks the beginning of spring in the Northern Hemisphere
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9
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the blocking of sunlight th Earth that occurs when the moon is between the sun and Earth
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10
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the blocking of sunlight to the moon that occurs when Earth is directly between the sun and the moon
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12
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the two days of the year on which neither hemisphere is tilted toward or away from the sun
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13
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the movement of an object around another object
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14
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the part of the shadow surrounding the darkest part
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15
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one of the different shapes of the moon as seen from Earth
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16
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a tide with the least difference between low and high tides
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18
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the day of the year that marks the beginning of fall in the Northern Hemisphere
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19
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a tide with the greatest difference between low and high tide
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21
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the study of moons, stars, and other objects in space
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24
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the attractive force between two objects
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25
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a round pit on the moon's surface
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