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Seasons

why we have seasons?

TermDefinition
Rotation The spin of an object around its axis.
Rotation axis the line on which and object rotates.
orbit the path and object follows as it moves around another object.
revolution the orbit of one object around another object.
solstice when earths rotation axis is tilted directly toward or away from the sun.
equinox when earths rotation axis is tilted neither toward nor away from the sun.
phase the lit part of the moon or a planet that can be seen from earth.
Waxing phase phases of the moon during which more of the moon near side is lit each night.
waning phase phases of the moon during which less of the moons near side is lit each night.
umbra the central, darker part of a shadow where light is totally blocked.
penumbra the lighter part of a shadow where light is partially blocked.
solar eclipse and occurrence during which the moons shadow appears on earths surface.
Created by: user-1870930
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