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science 4th vocab


Seasons A subdivision of the year, marked by changes in weather, ecology, and hours of daylight.
Direct light Light that shins directly on something.
Indirect light Light that goes through somthing else before shining on an object.
Earths titlt A certian degree in wich the earths axis is sitting on.
Orbit Path of an object around a point in space.
Revolution The rotation of spinning around an object.
Axis An imaginary line in which earth sits on a tilt.
Rotation A circular movement around an object.
Solstice An astronomical event that occurs twice each year as the Sun reaches its highest or lowest excursion relative to the celestial equator on the celestial sphere.
Equinox When the tilt of the Earth's axis is inclined neither away from nor towards the Sun, the center of the Sun being in the same plane as the Earth's equator.
Moon phases (Space view) The appearance of the illuminated (sunlit) portion of the Moon as seen by an observer, usually on Earth.
Moon phases (Earth view) the result of looking at the illuminated half of the Moon from different viewing geometries.
Gibbous When more than half but less than fully illuminated.
Cresent Crescent is generally the shape produced when a circular disk has a segment of another circle removed from its edge.
Waxing Moving toward a full moon.
Waning Have a progressively smaller part of its isible surface illuminated, so that it appears to decrease in size.
Created by: e0406483