day/night cycle - repeating pattern of day and night that occurs every 24 hours, axis - imaginary line through Earth from the North to South Pole, rotate - to spin, Sun - star closest to Earth, Earth's rotation - causes day/night cycle, takes 24 hours, sunrise - when the Sun first appears in the east, sunset - when the Sun disappears in the west, apparent motion - the Sun appears to move across the sky, but it is really Earth rotating, day - the half of the Earth facing the Sun experiences _____, night - the half of the Earth facing away from the Sun experiences _____,

C10L1: Day and Night Cycle (5.9)

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