words
Published on Nov 18, 2015
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PRESENTATION OUTLINE
Gravity
The force that attracts a body toward the center of the earth or toward any other physical body having mass.
Orbit
The curved path of a celestial object or spacecraft around a star, planet, or moon.
Photo by Defence Images
Tides
The alternate rising and falling of the sea, usually twice in each lunar day at a particular place due to the attraction of the moon and sun.
Photo by mlhradio
Rotation
The action of rotating around an axis or center.
Revolution
The movement of one object around a center of another object
Earths Axis & Tilt
The angle between an objects rotational axis and it's orbital axis
Seasons
Each four divisions of the year (spring, summer, autumn, and winter)
Photo by wili_hybrid
Solstice
Either of the two times in the year the summer solstice and winter solstice when the sun reaches it's highest or lowest point in the sky at noon marked by the longest and shortest days.
Equinox
The time or date at which the sun crosses the celestially equator when day and night are of equal length.
Photo by NASA Goddard Photo and Video
