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CH-20 L-1

im so tired rn

TermDefinition
Orbit The path an object follows as it moves around another object.
Revolution The motion of one object around another object.
Rotation A spinning motion.
Rotation axis The line of which an object rotates.
Solstice A day when Earth's axis is most toward or away from the Sun.
Equinox A day when Earth's axis is leaning along Earth's orbit neither toward or away from the Sun.
Maria The large flat areas on the Moon.
Phase A portion of the Moon or a planet reflecting light as seen from Earth.
Waxing phase More of the Moon's near side is lit each night.
Waning phase Less of the Moon's near side is lit each night.
Umbra The central, darker part of a shadow where light is totally blocked.
Penumbra lighter part of a shadow where light is partially blocked.
Solar eclipse When the Moon's shadow appears on the Earth's surface.
Lunar eclipse When the Moon moves into Earth's shadow.
Tide The daily rise and fall of the sea level.
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