Science Quiz / Earth Space Hon 2012 Lauren K Ch 21

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QUIZ: Can you name the Chapter 21 vocab?

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DefinitionVocab Word
centered view of the universe, earth is sphere that remained motionless at cetner of universe
an imaginary hollow sphere upon which the ancients believed the stars were hung and carried around earth
sun centered universe
earth centered view of the universe
the apparent westward motion of the planets with respect to the stars
average distance from earth to the sun
the gravitational disturbance of the orbit of one celestial body by another constellation
divides the celestial sphere into coordinates that are similar to the latitude and longitude system
angular distance north or south of the celestial equator
angular distance measured eastward along the celestial equator from the position of the vernal equinox
turning or spinning a body on its axis
motion of a body, along a path around some point in space
DefinitionVocab Word
gradual change in the orientation of Earth's axis over a period of 26,000 years
time interval from one noon to the next, which averages 24 hours
time it takes for eath to make one complete rotation (360 degrees) with respect to a star other than our sun
point in the orbit of a planet where it is closet to the sun, 147 million kilometers
when earth is 152 million kilometers distant, occurs about July 4
the apparent annual path of the sund against the backdrop of the celestial sphere
the imaginary plane that connects points along the ecliptic
time span of the moon that requires 29 1/2 days
true period of moon's revolution around earth that takes 27 1/3 days
the progression of changes in the moon's appearance during the month
an eclipse of the sun
an eclipse of the moon

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