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Space Vocabulary 1

space

TermDefinition
eclipse The partial or total blocking of light of one celestial object by another.
equator An imaginary line forming a great circle around the Earth’s surface that divides Earth into northern and southern hemispheres
hemisphere Either the northern or southern half of the Earth as divided by the equator, or the eastern or western half as divided by a meridian, especially the prime meridian
phases Any of the forms, recurring in cycles, in which the moon or a planet appears in the sky.
revolution The motion of an object around a point, especially around another object or a center of mass.
rotation The motion of an object around an internal axis
seasons A period of an object around an internal axis
solstice When one hemisphere gets its maximum area of sunlight, while the other hemisphere gets its minimum amount; the time of year when days are either longest or shortest, and the angle of sunlight reaches its maximum or minimum
equinox When sunlight shines equally on the Northern Hemisphere and the Southern Hemisphere; a time of year when daylight and darkness are nearly equal for most of Earth
tides The regular rising and falling of Earth’s surface waters twice a tidal day as a result of the Moon’s and Sun’s gravitational attraction.
waxing increasing
waning decreasing
Created by: lcochrane
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