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Rotation
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Earth's spin on the axis |
Revolution
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Complete cycle of the earth around the sun |
Tilt of axis
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The 23.5 degree angle of the earth
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Seasons
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The 4 divisions of the year (spring, summer, autumn, and winter) |
Day
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A period of 12 hours that has sunlight |
Night
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A period of 12 hours without sunlight |
Full moon
|
Phase of the moon in which the whole disk is illuminated |
New moon
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Phase of the moon when it is in conjunction with the sun and is invisable from earth
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Waxing
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Its illuminated area is increasing
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Waning
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Illuminated area is decreasing
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Crescent moon
|
Figure of the moon in its first or last quarter |
Gibbous moon
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Moon is half or more then half full |