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Seasons stack


Seasons A short period of climate change in an area caused by the tilt of the Earth's axis as it revolves around the Sun.
Direct Light It is when an area or object is right in front of the light source receiving the greatest amount of light.
Indirect Light It is when an object or area is not directly in front of the light source receiving the least amount of light.
Earth's Tilt It is when the Earth is tilted 23.5 degrees and the imaginary line is perpendicular to the equator.
Orbit Earth's pathway around the Sun.
Revolution (Revolve) Earth's year long elliptical orbit around the sun.
Axis An imaginary vertical line that cuts through the center of the Earth and around which Earth spins.
Rotation The spinning of Earth on its axis, which takes about 24 hours to complete and it causes day and night to occur.
Solstice Twice yearly point at which the Sun reaches its greatest distance north or south of the equator.
Equinox Twice yearly time, each spring and fall, when the Sun is directly over the equator and the numbers of daylight and nighttime hours are equal worldwide .
Moon Phases (Space View) There are no phases when seen in space.
Moon Phases (Earth View) A lunar phase or phase of the moon is the appearance of the illuminated portion of the Moon as seen by an observer. The phases are new moon, waxing crescent, first quarter, waxing gibbous, full moon, waning gibbous, last quarter, waning crescent.
Gibbous A lunar phase either side of the full moon when the moon's disc as seen from the Earth is larger than a semicircle.
Crescent The curved sickle shape of the waxing or waning moon.
Waxing Describes phases following a new moon as more of the Moon's lighted side becomes visible.
Waning Describes phases that occur after a full moon, as the visible lighted side of the Moon grows smaller.