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ES 16 vocabulary

TermDefinition
axis an imaginary line that passes from the North Pole to the South Pole of a planet, moon, or star
moon a natural object that revolves around a planet
phases of the moon the regular changes in the way the moon looks from Earth
revolution one orbit of an object in space around another object in space
rotation spinning of a planet, moon, sun, or other object, around its axis
orbit path an object in space follows as it revolves around another object
gravity the force that pulls objects toward each other
tides regular rise and fall of the ocean's surface caused mainly by the moon's gravity pulling on the Earth
Created by: kdungo
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