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Chapter 20

Earth, Moon, and Sun

QuestionAnswer
Axis of rotation an imaginary line about which a turning body, such as Earth, rotates
Eclipse an event during which one object in space cast a shadow onto another.
Equinox in an orbit, a position and time in which sunlight shines equally on the Norther Hemisphere and the Southern Hemisphere
Mare a large, dark plain of solidified lava on the Moon
Penumbra a region of lighter shadow that may surround an umbra
Revolution the motion of one body around another, such as Earth in its orbit around the Sun
Season one part of a pattern of temperature changes and other weather trends over the course of a year
Solstice in an orbit, a position and time during which one hemisphere gets its maximum area of sunlight, while the other hemisphere gets its minimum area of sunlight
Umbra the dark, central region of a shadow
Created by: avaught
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