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15 Cards in this Set

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consider
To ponder, contemplate with awe, think about deeply [L. considerare, observe]
creation
All that which is created [jL. craere, to make out of nothing]
constellation
a fixed group of stars [L cum, together + stella, a star]
continent
large mass of land [L. cum, together + tenere, to hold]
galaxy
a group or system of stars and other heavenly bodies [Gk. galac, milk: galaxy= milky circle, hence, Milky Way Galaxy]
planet
a heavenly body that revolves around the sun [Gk. plane, to wander; planet = to wander in the sky]
solar system
the group of planets, their satellites (moons), comets, meteors, asteroids, and so forth, that revolves around the sun [L. sol, sun]
star
any celestial body that gives off light [L. stella, a star]
universe
all created things [L. unus, one + versum, to turn]
gravity
the force that attracts one object to another L. gravitas, heavy]
orbit
the path of a heavenly body as it rotates around another body [L. orbis, a circle]
AU (Astronomical unit)
the distance from the sun to Earth (about 93,000,000 miles)
axis
an imaginary line passing through the center of the earth from the North pole to the South pole [L. axis, an axle]
day
the length of time it takes a planet to rotate on its axis [O.E. daeg, day]
gaseous
composed of substances that are neither solid nor liquid [Gk. chaos, chaos]