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Seasons

Why do we need seasons

TermDefinition
Rotation The spin of an object around its axis
Rotation axis The line on which an object rotates
Orbit The path an 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 towards or away from the sun
Equinox When earth rotation 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 moons 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 partly blocked
Solar eclipse An occurrence during which the moon shadow appears on earth surface
Created by: user-1870931
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